The first time I took a bite of Chocolate Zucchini Cake, I was floored by how deliciously rich and fudgy it was, completely forgetting that it contained zucchini! This ultimate moist chocolate zucchini cake is my go-to recipe for turning an abundant harvest into a delightful dessert that surprises both family and friends. Not only does this cake embrace the spirit of summer cooking, but it also boasts customization at its best—choose from various frosting options or take it à la mode for an even sweeter treat. With its wholesome ingredients and a secret veggie twist, it’s a guilt-free indulgence that proves you can satisfy your sweet tooth while sneaking in some nutrients. Are you ready to dive into this delectable creation?

Why is Chocolate Zucchini Cake a Must-Try?
Decadent, this cake seems too good to be true—with rich chocolate flavors masking the surprise ingredient. Moist and fudgy, it offers a delightful texture that everyone will love, regardless of dietary preferences. Vegan-friendly and easily customizable, you can mix in chocolate chips or top it with Matcha Cashew Frosting for a unique twist. Perfect for gatherings, it’ll impress your guests and become a staple at summer parties. Pair it with some vanilla ice cream, or try my Easter Chocolate Lasagna as a fun dessert variation!
Chocolate Zucchini Cake Ingredients
For the Batter
- Ground Flaxseed – Acts as an egg substitute for binding; you can replace it with 1 egg for a non-vegan version.
- Water – Hydrates the flaxseed to create a gel-like consistency, essential for moisture.
- Apple Cider Vinegar – Reacts with baking soda to provide lift and tenderize the cake perfectly.
- Almond Milk – Adds moisture; yogurt or oat milk are great alternatives if you prefer.
- All-Purpose Flour – Forms the cake’s structure; feel free to use a mix of white and whole wheat flour if desired.
- Cocoa Powder – Imparts a deep chocolate flavor; ideally, you want to stick to this for authenticity.
- Baking Powder & Baking Soda – Leavening agents that work to help the cake rise beautifully.
- Sea Salt – Enhances all the flavors for a balanced taste.
- Coconut Oil – Contributes richness; you can swap for another oil if that’s what you have on hand.
- Maple Syrup – Sweetens the cake while adding moisture; agave or regular sugar can act as substitutes.
- Vanilla Extract – Provides depth of flavor; truly enhances the overall experience.
- Zucchini (finely shredded, unpeeled) – Adds moisture and nutrients; don’t squeeze out the water to preserve texture.
For the Frosting (Optional)
- Matcha Powder – Offers a vibrant green color and unique flavor; consider this if you’re feeling adventurous!
- Cashews (soaked) – Blend with matcha and other frosting ingredients for a creamy topping option.
- Chocolate Chips – Feel free to mix these into the batter or sprinkle them on top for extra indulgence!
Embrace the magic of this Chocolate Zucchini Cake as you create a savory delight that’s easy to customize, ensuring every bite is as sweet as the last!
Step‑by‑Step Instructions for Chocolate Zucchini Cake
Step 1: Preheat and Prepare
Begin by preheating your oven to 350°F (177°C). While the oven heats, grease a 9×13-inch baking dish with coconut oil to ensure easy removal of your delicious Chocolate Zucchini Cake once baked. This step sets the stage for a perfect cake that rises beautifully.
Step 2: Flaxseed Mixture
In a small bowl, combine 2 tablespoons of ground flaxseed with 6 tablespoons of water. Stir well and let it sit for about 5 minutes to thicken into a gel-like consistency. This will bind the ingredients and is key to achieving the cake’s moist texture, making it a delightful vegan option.
Step 3: Milk Mixture
Next, take a separate bowl and mix 1 tablespoon of apple cider vinegar into 1 cup of almond milk. Set this aside for a few minutes. The vinegar reacts with the baking soda to create lift, ensuring your Chocolate Zucchini Cake is light and tender.
Step 4: Dry Ingredients
In a large mixing bowl, whisk together 1 ½ cups of all-purpose flour, ½ cup of cocoa powder, 1 teaspoon of baking powder, 1 teaspoon of baking soda, and ¼ teaspoon of sea salt. Make sure there are no clumps in the flour mixture, as this will help achieve an even rise and rich flavor in your cake.
Step 5: Combine Wet Ingredients
In another bowl, whisk together the thickened flaxseed mixture, the almond milk mixture, ⅓ cup of melted coconut oil, ½ cup of maple syrup, and 2 teaspoons of vanilla extract. Blend until smooth and well combined, allowing all the flavors to meld nicely for a deliciously fudgy Chocolate Zucchini Cake.
Step 6: Mix Ingredients
Pour the wet ingredients into the bowl of dry ingredients and gently stir until just combined. Be careful not to overmix, as this could lead to a dense cake. Fold in 1 ½ cups of finely shredded zucchini, ensuring it’s evenly distributed throughout the batter for added moisture.
Step 7: Bake the Cake
Transfer the batter into the prepared baking dish, spreading it out evenly. Place it in your preheated oven and bake for 30-35 minutes. Check for doneness by gently pressing in the center—the cake should spring back when touched and you may see a slight crack on top.
Step 8: Cool Down
Once baked, remove the cake from the oven and allow it to cool in the pan for about 10 minutes. Then, transfer it to a wire rack to cool completely. This step is essential before frosting to avoid melting your delicious topping.
Step 9: Prepare Optional Frosting
If you wish to frost your Chocolate Zucchini Cake, soak 1 cup of cashews in water for at least 4 hours, then drain. Blend the soaked cashews with matcha powder and sweetener of choice until smooth to create a creamy frosting that pairs wonderfully with the cake’s fudgy texture.

How to Store and Freeze Chocolate Zucchini Cake
Room Temperature: Store the un-frosted Chocolate Zucchini Cake in an airtight container at room temperature for up to 3 days, ensuring it remains moist and delicious.
Fridge: If you’ve frosted your cake, keep it in the refrigerator for up to a week. Cover it loosely with foil or plastic wrap to maintain flavor and texture.
Freezer: Freeze the un-frosted Chocolate Zucchini Cake by wrapping it tightly in plastic wrap and then in aluminum foil. It can last for up to 3 months.
Reheating: To enjoy frozen cake, thaw it in the fridge overnight. For a warm treat, gently reheat individual slices in the microwave for about 15-20 seconds.
What to Serve with Chocolate Zucchini Cake?
Experience a delightful journey through flavors and textures while elevating your Chocolate Zucchini Cake into a memorable meal!
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Creamy Vanilla Ice Cream: A scoop of creamy vanilla ice cream adds a contrasting coldness that beautifully complements the rich, fudgy cake.
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Fresh Berries Medley: Serve with a mix of raspberries, strawberries, or blueberries for a refreshing burst of flavor and a touch of tartness, balancing the sweetness perfectly.
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Whipped Coconut Cream: This light, fluffy topping enhances the chocolate decadence with a subtle coconut flavor, making it a perfect dairy-free pairing for a vegan delight.
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Homemade Chocolate Sauce: Drizzle warm chocolate sauce over each slice for an indulgent touch that amplifies the cocoa notes of your cake—and who wouldn’t love extra chocolate?
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Fruit Salad: A vibrant fruit salad with citrus and melon offers a bright counterpoint to the cake, keeping everything light and cheerful.
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Earl Grey Tea: The fragrant notes of Earl Grey tea bring a sophisticated touch, creating an elegant atmosphere alongside your lovely dessert.
Each pairing ensures your Chocolate Zucchini Cake is enjoyed in delightful company, making every bite an experience worth savoring!
Expert Tips for Chocolate Zucchini Cake
• Cool Completely: Allow the cake to cool fully before frosting; this prevents any melting and ensures a beautiful presentation.
• Moist Zucchini: Don’t squeeze the moisture out of the zucchini; it’s vital for the cake’s moist texture and overall deliciousness.
• Gluten-Free Adjustments: If using a gluten-free flour blend, remember that results may vary, so check your baking time and texture closely.
• Check for Doneness: When baking, gently press the center of the cake; it should spring back when fully cooked. Adjust the baking time accordingly for cupcakes (about 18-20 minutes).
• Experiment with Flavors: Feel free to add chocolate chips or nuts to the batter for delightful surprises in every bite of your Chocolate Zucchini Cake.
Make Ahead Options
These Chocolate Zucchini Cakes are a fantastic option for busy home cooks looking to save time without sacrificing flavor! You can make the cake itself up to 3 days in advance; simply allow it to cool completely, then wrap it tightly in plastic wrap or store it in an airtight container. This helps maintain its moist, fudgy consistency, so it stays just as delicious when you’re ready to serve. If you’re planning to frost the cake, prepare the Matcha Cashew Frosting up to 24 hours ahead and refrigerate it in an airtight container. When you’re set to treat your family or guests, simply frost the cake and serve—it’s guaranteed to impress with minimal hassle!
Chocolate Zucchini Cake Variations & Substitutions
Feel free to get creative with this moist and fudgy chocolate zucchini cake, exploring different flavors and textures!
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Carrot Cake Twist: Substitute shredded zucchini with grated carrots for a colorful and sweet variation. This option gives a delightful hint of spice and sweetness, adding surprises for the taste buds.
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Gluten-Free Flour: Swap all-purpose flour with a gluten-free blend for a safe cake alternative. Be sure to check the blend’s baking instructions, as some may require different liquid ratios or baking times.
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Nut-Free Frosting: Use a creamy coconut cream frosting in place of the matcha cashew option for a nut-free dessert. The light and airy finish will still bring excitement while keeping everyone at the table happy.
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Extra Chocolate Boost: Fold in ½ cup of chocolate chips into the batter for an extra indulgent version of this cake. The chocolate chips melt slightly during baking, creating pockets of luscious chocolate goodness in every bite!
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Cacao Nibs: Swap some of the cocoa powder for cacao nibs for a crunchy texture and additional layers of chocolate flavor. This adds a delightful contrast to the moistness of the cake that everyone will love.
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Non-Frosted Delight: Serve this cake unadorned for a simple, guilt-free treat that highlights the rich chocolate flavors. Pair it with a scoop of vanilla ice cream for a deliciously contrasting bite!
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Matcha Whole Trifecta: Top your cake with not just Matcha Cashew Frosting, but also sprinkle some matcha powder on top for a vibrant green surprise. The combination visually appeals as much as it tastes!
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Spicy Kick: Add a pinch of cayenne or chili powder to the batter for a subtle spicy kick. This unexpected warmer flavor will provide an exciting twist that can charm adventurous eaters, elevating your cake to new heights.
Whether it’s a simple backyard BBQ or an elegant celebration, this chocolate zucchini cake is destined to be a showstopper. Don’t forget to pair it with my delightful Strawberry Cheesecake Dump Cake or sink your fork into a slice of Honeybun Carrot Cake for a perfectly sweet dessert spread!

Chocolate Zucchini Cake Recipe FAQs
What should I look for when selecting zucchini for the cake?
Absolutely! Choose firm zucchinis that are unblemished and have shiny skins. Avoid ones with dark spots or soft areas, as they can indicate overripeness. The ideal zucchini is actually medium-sized, as larger ones can be watery.
How should I store my Chocolate Zucchini Cake?
You can store your un-frosted Chocolate Zucchini Cake in an airtight container at room temperature for up to 3 days. If frosted, it’s best to refrigerate it, where it can stay fresh for up to a week. Just ensure it’s loosely covered to maintain its delectable texture!
Can I freeze the Chocolate Zucchini Cake?
Absolutely! To freeze your un-frosted Chocolate Zucchini Cake, wrap it tightly in plastic wrap, followed by aluminum foil to prevent freezer burn. It can be stored for up to 3 months. When you’re ready to enjoy it, simply thaw it in the fridge overnight, and warm it up in the microwave for about 15-20 seconds if you prefer!
What if my Chocolate Zucchini Cake turns out too moist?
If your cake is too moist, it may be due to excess moisture from the zucchini. Remember to avoid squeezing the zucchini before adding it to the batter. Additionally, an oven that isn’t fully preheated can lead to uneven baking. Always check for doneness by gently pressing the center; if it spring backs, it’s ready!
Are there any dietary concerns I should be aware of with this recipe?
Yes! This Chocolate Zucchini Cake is vegan, but for those with nut allergies, consider substituting almond milk with oat milk or another nut-free milk. Additionally, if you’re using chocolate chips, make sure they are dairy-free to keep the recipe fully vegan-friendly.
Can I customize the frosting for dietary restrictions?
Very much so! If you need a nut-free option, consider making a simple glaze with powdered sugar and a splash of non-dairy milk. Alternatively, a cream cheese frosting (using dairy-free cream cheese) is also delicious and pairs wonderfully with the cake’s rich flavors!

Decadent Chocolate Zucchini Cake That's Vegan and Fudgy
Ingredients
Equipment
Method
- Preheat your oven to 350°F (177°C) and grease a 9x13-inch baking dish with coconut oil.
- In a small bowl, combine 2 tablespoons of ground flaxseed with 6 tablespoons of water and let it thicken.
- Mix 1 tablespoon of apple cider vinegar into 1 cup of almond milk and set aside.
- In a large bowl, whisk together 1.5 cups of flour, 0.5 cup of cocoa powder, 1 teaspoon of baking powder, 1 teaspoon of baking soda, and 0.25 teaspoon of salt.
- In another bowl, whisk together the flaxseed mixture, almond milk mixture, 0.33 cup of melted coconut oil, 0.5 cup of maple syrup, and 2 teaspoons of vanilla until smooth.
- Pour the wet ingredients into the dry ingredients and gently stir until just combined. Fold in 1.5 cups of zucchini.
- Transfer the batter to the prepared baking dish and bake for 30-35 minutes. Check for doneness.
- Allow the cake to cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely.
- For frosting, soak 1 cup of cashews in water for at least 4 hours, then blend with matcha powder until smooth.
