Chocolate Banana Cake

Chocolate Banana Cake is the perfect marriage of chocolate and bananas in a delicious 13×9 snack cake! Topped with delicious cream cheese frosting, you’ll love this easy recipe!

Love easy cake recipes? Our chocolate pudding cake is dense and delicious! Fudgy and moist. Or give these easy Banana Cupcakes a try for an on the go treat.

Slice of chocolate banana cake topped with cream cheese frosting and walnuts.

Why this Recipe Works

Instead of banana bread or banana muffins, I wanted to bake a banana dessert.

Specifically a dessert with CHOCOLATE. This Chocolate Banana Cake was the solution. The deliciously satisfying solution!

Adding bananas to your cake does more than just give it banana flavor.

  • Mashed bananas provide rich moisture to the cake without adding fat or liquid. This helps the cake stay moist for much longer than most other homemade cakes.
  • Another thing I love about this recipe is that you add cocoa powder to the batter. Chocolate can overpower banana flavor, but I’ve added just enough to complement the banana flavor!

It tastes like chocolate banana bread, in a lighter, cakier form.

If you’re looking for a layered cake, my Banana Cake recipe would be your ideal treat. Add in some cocoa powder for a delicious chocolate treat.

Ingredient Notes

Ingredients needed for chocolate banana cake.

Bananas. Ripe bananas work best. If you’re making this by hand with a mixing bowl, mash the bananas in a separate bowl before using them in the recipe. Use our guide on how to ripen bananas in 20 minutes!

Cocoa powder. Use a good quality unsweetened cocoa powder for best results.

Vanilla. My homemade vanilla extract is perfect in this recipe.

Easy Instructions

Step by step photos showing how to make chocolate banana cake.
  1. Make the Batter. Cream together butter and sugar. Beat in an egg and vanilla extract, then mix in the mashed bananas.
  2. Add flour, kosher salt, baking powder and baking soda and blend to form a batter. Add cocoa powder just until blended. Don’t overmix.
  3. Spread in a 13×9 baking dish. It won’t seem like a lot of batter, but it will bake up nice and fluffy.
  4. Bake for 25 minutes. Cool. Top with homemade cream cheese frosting!

Tips and Tricks

  • Serving suggestion: Go full chocolate! Add homemade chocolate buttercream frosting instead of the cream cheese for a rich, decadent dessert. Or use my easy vanilla frosting recipe instead!
  • Storing: I love this cake best when kept chilled in the fridge. Store it covered in the pan or in an airtight container.
  • Freeze: Transfer individual slices of baked chocolate banana cake to freezer safe bags. To serve, pull out as many slices as you desire and let thaw in the fridge overnight.
  • Greasing the pan: I use my empty butter wrapper to grease the pan before adding the cake batter. You can also use baking spray if preferred. Or use my homemade cake release!
Slice of chocolate banana cake being lifted out of 13x9 pan.

Recipe FAQs

What pan do I need to make this cake recipe?

I bake Chocolate Banana Cake in a 9 x 13 rimmed baking dish (rectangular cake pan).

How do you mash bananas?

Bananas can be mashed so many ways! Soft and overripe bananas are usually easy to mash by hand with a potato masher or even a strong fork. If you’re using a stand mixer to make this recipe, you don’t even need to mash the bananas first! Just add them right to the bowl and let the mixing attachment do its thing.

How can I make a banana cake in a layer cake pan?

If you want to make a layer cake, I would divide the batter evenly between two layer pans. The cakes will need less baking time. Add your favorite frosting and enjoy. I find I enjoy the “rustic” swirl of the layers baked together, however it would make a delicious traditional layer cake too.

What is the difference between banana bread and banana cake?

Banana bread is baked in a loaf pan and has a firmer, dense texture. Banana cake has a soft crumb and is great for adding sweet frosting!

Chocolate banana cake with cream cheese frosting and walnuts served on a white plate.

More Cake Recipes

Yield: 20 servings

Chocolate Banana Cake

Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes

Chocolate Banana Cake is the perfect marriage of chocolate and bananas in a delicious 13x9 snack cake! Topped with delicious cream cheese frosting, you'll love this easy recipe!


  • ½ cup unsalted butter, softened
  • 1 cup granulated sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 3 medium bananas, mashed (about 2 cups)
  • 1 ½ cups all-purpose flour
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • ½ teaspoon kosher salt
  • ½ cup unsweetened baking cocoa
  • ½ batch cream cheese frosting (see notes below)
  • ¼ cup walnuts (optional)


  1. In mixer, blend butter and sugar until creamy. Add egg and vanilla, beat until combined. Blend in bananas. Add flour, baking powder, baking soda and salt. Add cocoa powder, just until combined, do not overmix.
  2. Spread in bottom of greased 13x9 pan (I use my butter wrapper to grease the pan).
  3. Bake in a 350 degree oven for 25 minutes. Cool completely before frosting.


  • FROSTING: You'll need a half batch of our delicious cream cheese frosting. Or use ½ batch of chocolate frosting for a rich decadent cake.
  • COCOA: Choose a high quality unsweetened cocoa powder like Ghirardelli. This reduces the bitterness that some brands have.
  • STORAGE: This cake is delicious served cold. Store in airtight container in refrigerator (or room temperature if preferred) for up to 4 days. Or freeze for up to 3 months.
  • See blog post for more recipe tips and tricks!

Nutrition Information:



Serving Size:

1 slice

Amount Per Serving: Calories: 152Total Fat: 6gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 2gCholesterol: 22mgSodium: 146mgCarbohydrates: 23gFiber: 1gSugar: 13gProtein: 2g

*Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice.

Did you make this recipe?

Please leave a comment on the blog or share a photo on Instagram

Never let over ripe bananas go to waste again! You may even want to start buying extra bananas just for an excuse to make this Easy Chocolate Banana Cake recipe.

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About Aimee

Aimee is a dessert lover (specifically rice krispie treats), workout enthusiast, self-taught foodie, and recipe creator.

Learn more about Aimee.

Affiliate Disclosure:**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

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Posted on March 1, 2021

Comments & Reviews

  1. Just made this recipe! For future reference, I ended up baking the cake for 30-35 minutes. hopefully that helps anyone who experienced wobbly cakes! I recommend continuing to bake them for five minutes at a time if they’re still wobbly after 25 min

  2. I’m baking this recipe now, even at 350 degrees and 25 mins, my cake was stroll wobbly. How much time do you recommend for it to firm up?

  3. I would like to make the chocolate banana cake but I need the recipe for the cream cheese frosting. Thank you.

    1. The link to the cream cheese frosting recipe is in the recipe card 🙂 It’s also linked in the blog post.

  4. It seems very yummy but there is one thing wasn’t clear, you said divide the batter into two and add coca , what happens to the other half?

  5. I love finding new ways to use those over ripe bananas! This looks amazing – pinning & fb sharing 🙂 Have a wonderful weekend!

  6. Yum! I’m going to buy some bananas just so I can let them get overipe and make this! (My kids always ask for them and never eat them!) I think the Nutella would be delish!

  7. Love it, going to feature your cake on Friday at Bacon Time. Thanks for linking and hope to see you this week.

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