If you are on the lookout for a dessert that feels like a warm hug in every bite, then you absolutely have to try this Chocolate Zucchini Banana Cake Recipe. This wonderfully moist cake brings together the natural sweetness of ripe bananas with the subtle earthiness of fresh zucchini, all wrapped in a rich chocolatey embrace. It’s the perfect way to sneak some veggies into a decadent treat without sacrificing flavor. Whether for an afternoon snack or a crowd-pleasing dessert, this cake is a delightful surprise that everyone will love.

Ingredients You’ll Need
This Chocolate Zucchini Banana Cake Recipe relies on simple, wholesome ingredients that each play a key role in creating the perfect texture and flavor. From the soft sweetness of bananas to the deep richness of cocoa, each component works harmoniously to deliver a cake that’s moist, flavorful, and utterly satisfying.
- Mashed ripe banana: About 1 cup or 2 medium bananas, they add natural sweetness and moisture to the cake.
- Finely grated zucchini: 1 cup, with excess moisture squeezed out, it lends moisture and subtle veggie goodness without overpowering the chocolate.
- Large eggs: 2, to help bind all the ingredients and provide structure.
- Vegetable oil: 1/2 cup, enhances the cake’s moistness and tender crumb.
- Granulated sugar: 1/2 cup, balances out the earthy flavors with sweetness.
- Brown sugar (packed): 1/2 cup, adds a hint of caramel richness and extra moisture.
- Vanilla extract: 1 teaspoon, to brighten and enhance the overall flavor.
- All-purpose flour: 1 cup, the foundation that gives the cake its structure.
- Unsweetened cocoa powder: 1/2 cup, provides deep chocolate flavor without added sugar.
- Baking soda: 1 teaspoon, a leavening agent that helps the cake rise beautifully.
- Baking powder: 1/2 teaspoon, works with baking soda to achieve the perfect crumb.
- Salt: 1/2 teaspoon, enhances all the sweet and chocolatey notes.
- Cinnamon: 1/2 teaspoon, adds a warm, spicy undertone that complements the chocolate.
- Mini chocolate chips: 1/2 cup plus extra for topping, for pockets of melty chocolate goodness throughout the cake.
How to Make Chocolate Zucchini Banana Cake Recipe
Step 1: Prep Your Oven and Pan
First, preheat your oven to 350°F so it’s ready to bake this delicious cake perfectly. Grease a 9×9-inch baking pan to ensure your cake doesn’t stick and has inviting edges to slice and serve.
Step 2: Combine Wet Ingredients
In a large bowl, whisk together the mashed ripe bananas, grated zucchini (make sure to squeeze out excess moisture for the best texture), eggs, vegetable oil, granulated sugar, brown sugar, and vanilla extract. Mixing these until smooth ensures all those wonderful flavors marry beautifully to create a luscious base.
Step 3: Mix the Dry Ingredients
In a separate bowl, sift or whisk the all-purpose flour, unsweetened cocoa powder, baking soda, baking powder, salt, and cinnamon. This step ensures even distribution of leavening agents so your cake will rise uniformly and the flavors will be balanced.
Step 4: Combine Wet and Dry Mixtures
Gradually stir the dry ingredients into the wet mixture, being careful not to overmix. You want everything just combined to keep the cake tender and light. Overworking the batter can make a dense, less enjoyable texture.
Step 5: Fold in the Chocolate Chips
Gently fold in the mini chocolate chips, saving a handful to sprinkle on top before baking. These add delightful bursts of melty chocolate with every bite and make the cake even more irresistible.
Step 6: Bake and Cool
Pour the batter into your prepared pan and smooth the surface with a spatula for an even bake. Bake for 30 to 35 minutes, testing with a toothpick inserted into the center. When it comes out clean or with just a few moist crumbs, your cake is perfectly done. Let it cool in the pan before slicing to keep it moist and easy to serve.
How to Serve Chocolate Zucchini Banana Cake Recipe

Garnishes
Sprinkle your Chocolate Zucchini Banana Cake Recipe with a light dusting of powdered sugar or add a dollop of freshly whipped cream for an elegant touch. You can also garnish with extra mini chocolate chips or a few fresh berries to introduce a pop of color and an extra layer of flavor.
Side Dishes
This cake pairs wonderfully with a scoop of vanilla ice cream or a simple glass of cold milk. For a healthier vibe, fresh fruit or a cup of yogurt on the side complements the rich chocolate and subtly sweet zucchini flavors.
Creative Ways to Present
Why not turn your favorite Chocolate Zucchini Banana Cake Recipe into muffins for individual servings? Reduce the baking time to about 18-22 minutes for portable treats perfect for breakfast, snacks, or lunchboxes. You could also layer slices between whipped cream and berries for a stunning cake parfait that dazzles your guests and delights your taste buds.
Make Ahead and Storage
Storing Leftovers
Once cooled, store your cake airtight at room temperature for 2-3 days or refrigerate to keep it fresh for up to 5 days. Keeping it covered prevents it from drying out and preserves the moist texture that makes this recipe so special.
Freezing
This cake freezes beautifully. Wrap portions tightly in plastic wrap and place them in a freezer bag or airtight container. Frozen cake can last up to 3 months and is a fantastic option for prepping ahead or enjoying a sweet treat anytime.
Reheating
Reheat slices gently in the microwave for about 15-20 seconds or warm them in the oven at 300°F for 10 minutes to revive that fresh-baked feeling. Adding a little butter or a sprinkle of powdered sugar after reheating makes each bite taste freshly baked all over again.
FAQs
Can I substitute a different type of oil?
Yes! While vegetable oil works wonderfully, you can use coconut oil or melted butter for a richer flavor. Just make sure the oil is in liquid form for easy mixing.
Do I have to peel the zucchini before grating?
No need to peel your zucchini. The skin adds a lovely color and nutritional boost, just be sure to grate it finely and squeeze out excess moisture for the best cake texture.
What makes this cake moist compared to other chocolate cakes?
The combination of ripe banana and zucchini introduces extra moisture and natural sweetness, making this cake tender and wonderfully moist without needing heavy creams or butters.
Can I make this recipe gluten-free?
Absolutely! Substitute the all-purpose flour with a gluten-free baking blend that includes xanthan gum. This maintains the structure and texture while keeping it safe for gluten-sensitive eaters.
How long does the Chocolate Zucchini Banana Cake Recipe stay fresh?
Stored properly, this cake stays fresh for up to 5 days in the refrigerator and freezes well for several months, so you can enjoy it over time without losing its appeal.
Final Thoughts
Honestly, this Chocolate Zucchini Banana Cake Recipe is one of those magical recipes that turns simple ingredients into a comforting, delicious masterpiece. Whether you’re baking for family, friends, or just treating yourself, it always delivers moist texture, rich flavor, and a surprising veggie boost. Give it a try and watch it quickly become a single favorite in your dessert collection.
Print
Chocolate Zucchini Banana Cake Recipe
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 9 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
This Chocolate Zucchini Banana Cake is a moist and delicious dessert that cleverly incorporates grated zucchini and ripe bananas for added moisture and nutrition. With the rich flavor of cocoa powder and bursts of mini chocolate chips, this cake is a perfect balance of healthy ingredients and chocolatey goodness, ideal for a wholesome treat or a cozy dessert.
Ingredients
Wet Ingredients
- 1 cup mashed ripe banana (about 2 medium)
- 1 cup finely grated zucchini (squeezed of excess moisture)
- 2 large eggs
- 1/2 cup vegetable oil
- 1/2 cup granulated sugar
- 1/2 cup brown sugar (packed)
- 1 teaspoon vanilla extract
Dry Ingredients
- 1 cup all-purpose flour
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking soda
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 1/2 teaspoon cinnamon
Add-ins
- 1/2 cup mini chocolate chips (plus extra for topping)
Instructions
- Preheat and prepare pan: Preheat your oven to 350°F and grease a 9×9-inch baking pan to ensure the cake doesn’t stick.
- Combine wet ingredients: In a large bowl, whisk together the mashed banana, finely grated zucchini (after squeezing out excess moisture), eggs, vegetable oil, granulated sugar, brown sugar, and vanilla extract until the mixture is smooth and well combined.
- Mix dry ingredients: In a separate bowl, whisk together all-purpose flour, unsweetened cocoa powder, baking soda, baking powder, salt, and cinnamon to evenly distribute the leavening agents and spices.
- Combine wet and dry mixtures: Gradually add the dry ingredients into the wet ingredients, stirring gently until just combined. Avoid overmixing to keep the cake tender.
- Add chocolate chips: Fold in the mini chocolate chips carefully to distribute them throughout the batter.
- Pour batter and add toppings: Pour the batter into the prepared pan and smooth the surface with a spatula. Sprinkle a few extra mini chocolate chips on top if you like for a visually appealing finish.
- Bake: Bake in the preheated oven for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean or with just a few moist crumbs, indicating the cake is fully baked.
- Cool and serve: Allow the cake to cool completely in the pan before slicing and serving to ensure it holds together nicely.
Notes
- This cake is wonderfully moist and stays fresh for several days when stored properly.
- For extra indulgence, serve with a dusting of powdered sugar or a dollop of whipped cream.
- You can also bake this batter as muffins; reduce baking time to 18–22 minutes accordingly.

