Irresistibly Moist Chocolate Zucchini Cupcakes

Irresistibly Moist & Fudgy Chocolate Zucchini Cupcakes: Your Go-To Easy Recipe

Prepare yourself for the ultimate indulgence with these Irresistibly Moist & Fudgy Chocolate Zucchini Cupcakes! Imagine biting into a rich, decadent chocolate cupcake, so tender it practically melts in your mouth, all while secretly packed with a wholesome vegetable. Yes, we’re talking about almost two cups of grated zucchini seamlessly blended into these chocolatey delights, making them incredibly soft and adding an undetectable layer of nutrition.

These aren’t just any chocolate cupcakes; they’re a revelation. The zucchini acts as a natural moisturizer, ensuring every bite is supremely tender and fudgy without any vegetable flavor peeking through. This makes them perfect for a delightful treat on their own, much like a gourmet muffin, or elevated with a luscious swirl of your favorite frosting. Whether you’re looking for a clever way to use up your garden’s bounty or simply craving an exceptionally moist chocolate treat, this recipe delivers on all fronts.

You might be surprised by the generous amount of zucchini in this recipe, but trust us, it’s a game-changer! Far from tasting “green,” the zucchini disappears into the batter, leaving behind only incredible moisture and a tender crumb. It’s similar to how applesauce or bananas can enhance baked goods, but with zucchini, the flavor remains purely chocolate. This secret ingredient is what elevates these cupcakes from good to truly extraordinary, promising a soft, tender, and unbelievably fudgy texture that will have everyone asking for more. For more moist zucchini baked goods, try these almond flour zucchini muffins.

Close up view of a decadent chocolate zucchini cupcake in a wrapper with a bite taken out of it, revealing its fudgy texture.

*This recipe was originally published in August 2018. It has been updated with new photos, expanded text, and refined adjustments to the recipe, ensuring the best possible result for these delicious chocolate zucchini cupcakes.

Zucchini season is often in full swing when cravings for these cupcakes hit! While I don’t grow it myself, I always make sure to stock up at the local farmer’s market during peak season. (When I’m not baking with it, I’m usually spiralizing it to make these refreshing and healthy zucchini noodle bowls with crispy chickpeas and jalapeño dressing!)

Why You’ll Absolutely Love Baking These Chocolate Zucchini Cupcakes

These aren’t just another cupcake recipe; they offer a delightful combination of simplicity, indulgence, and clever nutrition. Here’s why these Chocolate Zucchini Cupcakes are destined to become a new favorite in your baking repertoire:

  • Naturally Dairy-Free Indulgence: Unlike many cupcake recipes that rely on butter and milk, these chocolate zucchini cupcakes are oil-based, making them naturally dairy-free. This is fantastic news for those with dietary restrictions or anyone looking for a lighter alternative without sacrificing flavor or texture. Just be sure to select dairy-free chocolate chips and frosting to keep the entire treat compliant. You won’t miss the dairy; the oil contributes to an incredibly moist crumb.
  • Effortless Zucchini Integration: Forget the tedious step of squeezing out moisture from your grated zucchini. This recipe embraces all the natural goodness of the vegetable. Simply shred your zucchini and add it directly to the batter. This not only saves you time and effort but also plays a crucial role in achieving the extraordinary moisture and tenderness that defines these chocolate cupcakes. The zucchini’s natural water content ensures a perfectly soft and luscious result.
  • No Special Equipment Needed: You don’t need a stand mixer or a hand mixer to create these culinary masterpieces. This recipe is designed for simplicity, requiring only a few basic kitchen tools: a couple of mixing bowls, a whisk, and a spatula. It’s a perfect recipe for beginner bakers or anyone who appreciates minimal cleanup and fuss-free baking.
  • Decadent Flavor and Fudgy Texture (Even Without Frosting!): While frosting is always a welcome addition, these cupcakes are so rich and fudgy on their own that they truly shine even without it. The combination of cocoa, chocolate chips, and the moisture from the zucchini creates a profound chocolate flavor and an unbelievably tender, fudgy texture. They’re so delicious, you might find yourself enjoying them as a sophisticated chocolate muffin for breakfast or a guilt-free afternoon snack.

These benefits combine to create a recipe that is not only easy and accommodating but also incredibly delicious and satisfying, proving that healthy additions can enhance, rather than detract from, the pure joy of a homemade treat.

Essential Ingredients for Perfect Chocolate Zucchini Cupcakes

Each ingredient plays a vital role in achieving the perfect balance of flavor, texture, and moisture in these delightful chocolate zucchini cupcakes. Below, we provide more detailed insights into the specific ingredients used and offer helpful tips and substitutions to ensure your baking success. For precise measurements, please refer to the comprehensive recipe card at the very end of this article.

A curated selection of fresh ingredients, including grated zucchini, cocoa powder, flour, and chocolate chips, ready for baking the best chocolate zucchini cupcakes.

Zucchini: The Secret to Moisture
You’ll need approximately 1 ¾ cups of coarsely grated zucchini for this recipe. The key here is “coarsely grated”—use the larger holes on your box grater. This ensures the zucchini retains enough moisture to hydrate the cupcakes without becoming watery or mushy. There’s no need to peel the zucchini; its thin skin virtually disappears during baking and adds a touch more fiber. Don’t press or drain it either; we want all that natural moisture to make our chocolate zucchini cupcakes incredibly soft and tender.

Dutch-Processed Cocoa Powder: For Deep Chocolate Flavor
To achieve that rich, dark, and intensely chocolatey flavor, this recipe calls for ½ cup of Dutch-processed cocoa powder. Dutch-processed cocoa has been treated with an alkali to neutralize its acidity, resulting in a darker color and a mellower, less bitter chocolate taste. This also means it reacts differently with leavening agents; hence, its combination with both baking soda and baking powder in this recipe. We haven’t tested this recipe with natural cocoa powder, which is more acidic and would likely require adjustments to the baking soda quantity.

All-Purpose White Flour: The Foundation
While I often incorporate whole wheat flour into many of my baked goods for its nutritional benefits, all-purpose white flour was chosen for these chocolate zucchini cupcakes to ensure a light, tender, and perfectly soft texture. You’ll need 1 cup, and it’s essential to measure it using the “spoon and level” method to avoid over-packing, which can lead to dense cupcakes. For precision, measuring by weight (125 grams) is always recommended.

Oil: For Ultimate Tenderness (Dairy-Free Friendly)
Using oil instead of butter is what makes these cupcakes dairy-free and contributes significantly to their moistness. I prefer extra virgin olive oil in my baking for its subtle fruity notes and health benefits, but you can confidently use other neutral-flavored oils like canola oil, avocado oil, or even a light olive oil. The oil helps keep the crumb incredibly tender and moist for days.

Coconut Sugar: A Less Refined Sweetener
Coconut sugar is our chosen sweetener, offering a wonderful caramel-like flavor that beautifully complements the chocolate. It’s also a less refined alternative to traditional sugars. If coconut sugar isn’t readily available or you prefer, you can substitute it with an equal amount of lightly packed brown sugar, which will provide a similar depth of flavor and moisture.

Ground Cinnamon: The Flavor Enhancer
Just a hint of ground cinnamon (1 ½ teaspoons) works wonders in this recipe. It doesn’t make the cupcakes taste like cinnamon; instead, it subtly amplifies and deepens the chocolate flavor, adding a layer of warmth and complexity that makes these chocolate zucchini cupcakes truly special. It’s a classic pairing with chocolate that you’ll absolutely adore.

Eggs: Binder and Leavening Aid
Two large eggs are crucial for both structure and moisture. They act as a binder, holding the batter together, and also contribute to the leavening process, helping the cupcakes rise and achieve that desirable fluffy texture. For optimal mixing and a smoother batter, ensure your eggs are at room temperature before you begin.

Vanilla Extract: Aromatic Depth
Don’t skimp on the vanilla! A full tablespoon of pure vanilla extract is added to enhance and round out the flavors of all the other ingredients, especially the chocolate. Always opt for real vanilla extract over artificial imitation for the best taste profile in your baked goods.

Baking Soda and Baking Powder: The Dynamic Duo for Rise
Both baking soda and baking powder are employed in this recipe to provide the perfect lift and tender crumb. Baking soda reacts with the slight acidity in the cocoa (even Dutch-processed has some) and brown sugar/coconut sugar, while baking powder provides an additional boost of leavening, ensuring light and airy chocolate zucchini cupcakes.

Salt: The Flavor Balancer
A touch of fine sea salt (or kosher salt) is added not just for flavor, but to balance the sweetness and deepen the chocolate notes. Salt is an essential component in baking that truly makes all the other flavors pop and prevents the cupcakes from tasting one-dimensional.

Mini Chocolate Chips: Extra Fudginess and Texture
For an irresistible extra layer of chocolatey goodness and a delightful textural contrast, 3 tablespoons of mini chocolate chips are folded into the batter. As they bake, these mini chips melt slightly, creating pockets of rich, fudgy chocolate throughout each cupcake. While optional, they are highly recommended for the ultimate chocolate experience. If keeping the recipe dairy-free, remember to use a certified dairy-free brand of chocolate chips.

Step-by-Step Guide to Baking Perfect Chocolate Zucchini Cupcakes

Creating these moist and fudgy chocolate zucchini cupcakes is surprisingly straightforward. Follow these simple steps for a perfect batch every time. Remember, the full recipe card with exact measurements is at the bottom of this post.

  1. Prepare Your Baking Station: Start by preheating your oven to 325°F (160°C). This lower temperature helps the cupcakes bake evenly and ensures a moist interior. Line a standard 12-cup muffin pan with paper cupcake liners. Using liners not only makes cleanup a breeze but also helps the cupcakes maintain their shape and prevents sticking.
  2. Combine Dry Ingredients: In a medium-sized bowl, whisk together the all-purpose flour, Dutch-processed cocoa powder, ground cinnamon, baking powder, baking soda, and fine sea salt. Whisking ensures these ingredients are thoroughly combined and evenly distributed, which is crucial for uniform leavening and flavor in your chocolate zucchini cupcakes. Make sure there are no lumps, especially in the cocoa powder.
  3. Mix Wet Ingredients: In a separate, larger bowl, whisk the room-temperature eggs until they are light and frothy. This incorporates air and helps with the cupcake’s rise. Then, whisk in the coconut sugar, olive oil (or your chosen oil), and vanilla extract until well combined and smooth. Finally, gently fold in the coarsely grated zucchini. Remember, resist the urge to drain or press the zucchini – all that natural moisture is key to the cupcakes’ tender texture.
  4. Gently Combine Wet and Dry: Gradually add the dry ingredient mixture to the wet mixture, stirring gently with a spatula or whisk until just combined. Be careful not to overmix the batter; overmixing can lead to tough cupcakes. A few small lumps are perfectly fine. The batter will be quite thick, which is exactly what you want for rich, fudgy chocolate zucchini cupcakes.
  5. Fold in Chocolate Chips: Once the batter is mostly combined, gently stir in the mini chocolate chips. This ensures they are evenly distributed throughout your cupcakes, providing delightful pockets of melted chocolate in every bite.
A visual guide showing the process of mixing dry and wet ingredients to form the chocolate zucchini cupcake batter, highlighting the thick consistency.
  1. Fill the Muffin Pan: Divide the thick batter evenly among the 12 prepared cupcake liners. Each cup should be approximately ¾ full to allow room for rising without overflowing. A spring-loaded ice cream scoop can be very helpful for consistent portions.
Cupcake batter, perfectly portioned into a 12-cup muffin pan, ready for baking. Each liner is about three-quarters full, ensuring optimal rise for these chocolate zucchini cupcakes.
  1. Bake to Perfection: Bake for 20-22 minutes. To check for doneness, insert a toothpick into the center of one of the cupcakes. If it comes out clean or with a few moist crumbs attached (but no wet batter), they are ready. Overbaking can lead to dry cupcakes, so keep an eye on them.
  2. Cool and Enjoy: Allow the chocolate zucchini cupcakes to cool in the muffin pan for a few minutes before carefully transferring them to a wire rack to cool completely. This prevents them from becoming soggy and helps them set. These cupcakes are incredibly delicious enjoyed plain, like a rich chocolate muffin, or elevated with your favorite frosting. We highly recommend a creamy chocolate frosting, or for a unique twist, try this delightful chocolate avocado frosting for an extra boost of healthy fats and a silky smooth finish.
Freshly baked chocolate zucchini cupcakes cooling in a muffin pan, their tops perfectly domed and ready for frosting or enjoying plain.

These simple steps will guide you to a batch of homemade chocolate zucchini cupcakes that are sure to impress with their rich flavor and irresistible moistness.

Frequently Asked Questions About Chocolate Zucchini Cupcakes

How do you grate zucchini for the best chocolate zucchini cupcakes?

For these particular chocolate zucchini cupcakes, you’ll want the zucchini to be coarsely shredded. This means using the larger shredding holes on your box grater (often referred to as a cheese grater). If you use the fine holes, the zucchini will release too much liquid and might become undetectable in a less desirable way, altering the cupcake’s texture. Coarse shreds integrate perfectly, ensuring moisture without creating a watery batter or noticeable chunks.

Do I need to squeeze the moisture out of the grated zucchini for this recipe?

Absolutely not! In fact, for these chocolate zucchini cupcakes, we specifically want to retain all the natural moisture from the zucchini. This moisture is the secret ingredient that ensures your cupcakes are incredibly soft, tender, and fudgy. Draining it would make them drier and less appealing. This also saves you a significant amount of time and effort in the preparation process!

Is it necessary to peel zucchini before baking with it?

No, there’s no need to peel the zucchini before incorporating it into your cupcake batter. The skin of zucchini is quite thin and becomes incredibly soft during baking, making it virtually unnoticeable in the final texture of the chocolate zucchini cupcakes. Plus, leaving the skin on adds a bit more fiber and nutrients. Just be sure to wash your zucchini thoroughly before grating it, and ideally, choose zucchinis without significant blemishes or deep scratches.

Can I use frozen zucchini for chocolate zucchini cupcakes?

While fresh zucchini is always preferred for its firm texture and optimal moisture content, you can use frozen grated zucchini. However, it’s crucial to thaw the frozen zucchini completely and then gently pat it dry with paper towels to remove excess water. Frozen zucchini tends to release a lot more liquid, and if not dried, it could make your batter too wet, resulting in dense or gummy cupcakes. For the best results, stick with fresh if possible.

Can this chocolate zucchini cupcake recipe be adapted to make a full zucchini cake?

This particular recipe has been specifically developed and tested for cupcakes, ensuring their perfect rise, moistness, and baking time in individual portions. While some cupcake recipes can be scaled up or adapted for a cake, altering the pan size and baking time often requires significant adjustments to prevent drying out or underbaking. If you’re specifically looking for a delicious chocolate zucchini cake recipe, we highly recommend trying this proven dark chocolate zucchini cake with avocado icing for guaranteed success.

A close-up of a chocolate zucchini cupcake being carefully topped with a swirl of rich chocolate frosting.

Proper Storage and Freezing for Freshness

To keep your delicious chocolate zucchini cupcakes tasting fresh and moist for as long as possible, proper storage is key:

Room Temperature Storage: If your cupcakes are unfrosted, they will remain wonderfully moist and tender when stored in an airtight container at room temperature for up to 3 days. Ensure the container is truly airtight to prevent them from drying out.

Refrigerated Storage (Frosted Cupcakes): If you’ve already frosted your chocolate zucchini cupcakes, especially with a cream cheese or dairy-based frosting, it’s best to store them in an airtight container in the refrigerator. They will maintain their freshness for about 3-5 days. Remember to let them come to room temperature for about 15-30 minutes before serving for the best texture and flavor of both the cupcake and the frosting.

Freezing for Later Enjoyment: These chocolate zucchini cupcakes freeze beautifully, allowing you to enjoy them long after baking. To freeze, ensure the cupcakes are completely cooled. Place the unfrosted cupcakes in a single layer in a freezer-safe container or freezer bag. If stacking, place a piece of parchment paper between layers to prevent sticking. They can be stored in the freezer for up to 3 months.

Defrosting: When you’re ready to enjoy your frozen chocolate zucchini cupcakes, simply remove them from the freezer and let them defrost at room temperature for a few hours. Once fully thawed, you can frost them as desired and serve. This makes them a fantastic make-ahead option for parties or last-minute cravings.

Precision in Measuring Ingredients

For convenience and ease of use, US cup measurements are included in the recipe card for this recipe. However, to ensure greater accuracy, especially in baking, both weight (grams for dry ingredients) and volume (milliliters for liquids) measurements are also provided. So, if you see grams (g), we highly recommend using a kitchen scale to weigh your ingredients for the most consistent results. For milliliters (ml), a liquid measuring cup will be best. Smaller quantities of ingredients, such as leavening agents and spices, are typically provided in teaspoons and tablespoons.

Top Tips for Baking the Best Chocolate Zucchini Cupcakes

Achieving perfectly moist and flavorful chocolate zucchini cupcakes is easy when you keep these expert tips in mind:

  • Room Temperature Ingredients are Essential: Always bring your eggs (and any other dairy if you were using it) to room temperature before mixing. Room temperature ingredients emulsify more easily, creating a smoother, more uniform batter. This leads to a better texture and a more consistent rise in your chocolate zucchini cupcakes.
  • Embrace Zucchini’s Natural Moisture: This is a crucial step! Do not drain or press the water out of your grated zucchini. The natural moisture from the zucchini is the star ingredient that keeps these cupcakes incredibly tender, soft, and fudgy. Removing it would result in dry, crumbly cupcakes, defeating the purpose of adding zucchini.
  • Accurate Flour Measurement: When measuring flour, always use the “spoon and level” method. Lightly spoon flour into your measuring cup until overflowing, then use a straight edge (like the back of a knife) to level off the excess. This prevents over-packing the flour, which can make your cupcakes dense and dry. For the most accurate results, consider weighing your flour using a kitchen scale, as the recipe card provides measurements in grams (125 grams for 1 cup).
  • Perfectly Portioned Batter: When filling your 12-cup muffin pan, aim to fill each cupcake liner about ¾ full. This allows ample room for the cupcakes to rise beautifully without overflowing or creating a messy dome that’s difficult to frost. Consistent filling also ensures all your chocolate zucchini cupcakes bake evenly.
  • Patience is a Virtue – Cool Completely Before Frosting: It might be tempting to frost your cupcakes while they’re still warm, but resist! The warmth will cause your frosting to melt and slide right off, creating a sticky mess. For a beautifully finished cupcake, ensure they are completely cooled to room temperature on a wire rack before applying any frosting.
  • Use Good Quality Ingredients: While these cupcakes are simple, the quality of your ingredients makes a difference. Use good quality cocoa powder for deep chocolate flavor, real vanilla extract, and fresh zucchini. These elements contribute significantly to the overall deliciousness of your chocolate zucchini cupcakes.
An inviting overhead shot of delicious chocolate zucchini cupcakes arranged on a plate, some topped with luscious chocolate frosting, ready to be enjoyed.

More Delicious Cupcake Recipes to Explore

If you’re a fan of these chocolate zucchini cupcakes, you might also enjoy experimenting with other delightful cupcake creations:

  • Vanilla Almond Flour Cupcakes: A light and fluffy gluten-free option.
  • Pineapple Coconut Cupcakes: For a tropical escape in every bite.
  • Flourless Ricotta Cupcakes: Rich, creamy, and wonderfully unique.

If you make this recipe, I’d absolutely love to hear what you think! Please leave your comments and ratings below—your feedback helps other bakers!

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Close up view of a chocolate zucchini cupcake with a bite taken out of it.

Chocolate Zucchini Cupcakes


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 15 reviews

  • Author:
    Leanne


  • Prep Time:
    15 minutes


  • Cook Time:
    22 minutes


  • Total Time:
    37 minutes


  • Yield:
    12 cupcakes


  • Category:
    Dessert


  • Method:
    Bake


  • Cuisine:
    American


  • Diet:
    Vegetarian
Print Recipe

Description

Chocolate Zucchini Cupcakes are rich and fudgy chocolate cupcakes, with almost 2 cups of grated zucchini, cocoa and chocolate chips, delivering irresistible moisture and flavor!


Ingredients

  • 1 cup all-purpose white flour, spooned and levelled (or 125 grams)
  • 1/2 cup Dutch processed cocoa (or 45 grams), sifted if lumpy
  • 1 1/2 teaspoons ground cinnamon
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon fine sea salt
  • 2 large eggs, room temperature
  • 1 cup coconut sugar (or 180 grams)
  • 1/3 cup extra virgin olive oil (or 80 millilitres)
  • 1 tablespoon vanilla extract
  • 1 3/4 cups coarsely grated zucchini (or 190 grams)
  • 3 tablespoons mini chocolate chips (dairy-free if necessary)


Instructions

  1. Preheat oven to 325F (160°C) and line a 12-cup muffin pan with cupcake liners.
  2. In a medium-sized bowl, whisk together the flour, cocoa, cinnamon, baking powder, baking soda and salt until well combined and lump-free.
  3. In a separate large bowl, whisk the room-temperature eggs until light. Then, whisk in the coconut sugar, oil and vanilla extract until smooth. Gently stir in the coarsely grated zucchini (do not drain!).
  4. Gradually add the dry ingredients to the wet mixture, stirring well with a spatula or whisk after each addition until just combined. Be careful not to overmix; the batter will be thick.
  5. Gently stir in the mini chocolate chips until evenly distributed.
  6. Divide the batter evenly into the 12 prepared cupcake liners, filling each cavity approximately ¾ full.
  7. Bake for 20-22 minutes, or until a tooth pick inserted into the middle of a cupcake comes out clean or with a few moist crumbs attached.
  8. Cool in the pan for a few minutes before transferring to a wire rack to cool completely.
  9. Enjoy on their own as a rich chocolate muffin, or top with your favorite frosting. We love this silky smooth chocolate avocado frosting for a dairy-free option!

Notes

  1. Ensure your eggs are at room temperature as they’ll mix together with the other ingredients more easily and create a smoother batter.
  2. A key to the moistness of these chocolate zucchini cupcakes: Do NOT drain or press the water out of the grated zucchini. The natural moisture is essential for the tender texture.
  3. You’ll want the zucchini coarsely shredded, so use the larger shredding holes on a box grater (cheese grater) for best results.
  4. If coconut sugar is unavailable, you can substitute it with an equal amount of lightly packed brown sugar for a similar caramel note and moisture.
  5. For accurate measurement of flour, always use the spoon and level method, or even better, weigh it in grams as specified in the recipe card.
  6. To keep these delicious cupcakes entirely dairy-free, be sure to use certified dairy-free chocolate chips and choose a dairy-free frosting.
  7. When filling the cupcake pan, aim for each cavity to be about ¾ full to allow for proper rising without overflowing.
  8. For beautifully frosted cupcakes, ensure they are fully cooled to room temperature before applying any frosting. Warm cupcakes will cause the frosting to melt.
  9. Be sure to check out the other detailed sections above the recipe card for more in-depth advice, ingredient insights, and frequently asked questions about making this recipe.

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