Banana Cake Recipe With Chocolate Icing: Rich Moist Layers and Fudgy Ganache Drizzle

This banana cake recipe with chocolate icing delivers the perfect balance of tender, moist layers and a rich, fudgy ganache drizzle that’ll satisfy any chocolate lover. 💛 The secret to its legendary texture lies in overripe bananas and a simple but effective baking technique that keeps it soft and flavorful for days. Whether you're a beginner or a seasoned baker, this recipe is designed to impress with minimal fuss and maximum reward.

The cake itself comes together in just 30 minutes of prep, with a baking time of 35-40 minutes at 350°F, ensuring a golden crust and a tender crumb that’s impossible to resist. The chocolate icing, made with a smooth ganache, adds a luxurious finish that ties everything together beautifully. No special equipment is needed—just a few pantry staples and a little patience for the best results.

What makes this recipe truly stand out is the way the moist cake absorbs the chocolate icing without becoming soggy, creating a harmonious blend of flavors and textures. The ganache drizzle isn’t just decorative—it’s a flavor boost that elevates every bite, making this cake perfect for birthdays, holidays, or just because. Once you try it, you’ll never settle for anything less.

Ready to bake? This recipe scales easily for gatherings, and leftovers keep well for up to 5 days in the fridge or can be frozen for future treats. Let’s get started on creating a dessert that’s as delicious as it is impressive.

Ingredients for banana cake recipe chocolate icing

Overripe bananas and rich chocolate make this cake irresistible—moist layers and fudgy ganache drizzle guaranteed!

Those overripe bananas are pure magic—look for black-spotted skins at the store or use your own. Trader Joe's and Whole Foods usually have perfect ones. The chocolate chips add pockets of gooey goodness, but if you're feeling fancy, chop your own chocolate bars for a smoother texture. For the chocolate bars, Ghirardelli or Lindt melt beautifully. Pro tip: Let the chocolate bars sit at room temperature for 10 minutes before chopping—they'll be easier to break into perfect pieces.

No overripe bananas? Use 1 cup mashed ripe bananas plus 1 tbsp lemon juice to mimic the tang. Out of chocolate chips? Chop a 12-oz chocolate bar instead—just make sure it's at least 60% cacao for that rich flavor. The powdered sugar for the icing? Sift it first—clumps make for a lumpy drizzle. And if you're watching sugar, you can cut the powdered sugar by half and add 1 tbsp of cornstarch to keep it smooth. Trust me, your cake will still taste amazing.

This cake stays moist for 5 days in the fridge, but the icing is best used within 3 days—it hardens after that. Store the cake layers wrapped tightly in plastic wrap, then cover with a clean kitchen towel to keep it soft. The ganache? Keep it in an airtight container at room temperature, and reheat gently in the microwave for 10-15 seconds before drizzling. Freeze the cake layers for up to 3 months—just thaw overnight before assembling.

Step-by-step instructions for banana cake with chocolate icing

Here's how to bake a perfectly moist banana cake with rich chocolate icing—every layer will be tender and fudgy!

Start by mashing the 3 medium overripe bananas in a large mixing bowl until completely smooth—no lumps! The riper the bananas, the sweeter and moister your cake will be. Add the 1.5 cups granulated sugar, 1 cup vegetable oil, 2 whole large eggs, 1 tbsp vanilla extract, 1 tsp baking soda, and 0.5 tsp salt. Mix on medium speed for 2 minutes until everything is fully combined.

This step is where the magic happens—the sugar and oil create a tender crumb, while the baking soda ensures a light rise. The bananas add natural sweetness and moisture, so don't skip mashing them well. If the mixture looks too thick, that's normal—it will lighten up when the dry ingredients are added.

In a separate bowl, whisk together the 2.5 cups all-purpose flour. Gradually add the flour to the wet mixture, mixing on low speed just until combined—do not overmix. Stop as soon as you see a few streaks of flour remaining. Fold in the 1.5 cups semisweet chocolate chips by hand using a silicone spatula, ensuring even distribution throughout the batter.

Overmixing develops gluten, which can make the cake dense. The chocolate chips will melt slightly during baking, adding pockets of gooey goodness. If your batter looks too thick, it's okay—banana batter naturally thickens as it sits. The cake will still rise beautifully.

Preheat your oven to 350°F and grease two 9-inch round cake pans (or line them with parchment paper). Divide the batter evenly between the pans and smooth the tops. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out clean and the edges are golden brown. Rotate the pans halfway through baking for even heat distribution.

Don't overbake—this cake is delicate! The moment the toothpick test passes is perfect. The cake should be moist but not gummy. Let the cakes cool in the pans for 10 minutes, then transfer to a wire rack to cool completely before icing.

In a medium saucepan, combine the 1 cup unsalted butter and 12 oz chopped semisweet chocolate bars. Melt over low heat, stirring gently until smooth. Remove from heat and whisk in the 0.5 cup heavy cream until fully incorporated. Let the mixture cool slightly, then whisk in the 2 cups powdered sugar until silky and smooth. If the icing is too thick, add 1-2 tablespoons milk to reach a drizzling consistency.

This ganache-style icing is rich and fudgy, perfect for drizzling over the cake. The butter and chocolate create a velvety texture, while the powdered sugar gives it a smooth, glossy finish. If the icing starts to thicken as it cools, just reheat it gently and whisk again.

Once the cakes are completely cool, place one layer on a serving plate. Spread a thin layer of icing on top, then place the second layer on top of the first. Drizzle the remaining icing generously over the top and sides of the cake, letting it cascade down naturally. For extra decadence, sprinkle additional semisweet chocolate chips on top before the icing sets.

Let the icing set for 30 minutes before slicing—this ensures clean cuts and a professional finish. Serve at room temperature for the best texture. Each slice will be moist, tender, and topped with a luscious chocolate ganache that melts perfectly with every bite.

Pro cooking tips for this recipe

Banana Ripeness Matters

Never underestimate the power of overripe bananas—those with black-spotted skins are the secret to ultra-moist cake. The riper they are, the more natural sweetness and moisture they provide. I always check the produce section at Whole Foods or Trader Joe's for the perfect ones. If you can't find them, add 1 tbsp lemon juice to fresh bananas to mimic that tangy depth. 🍌

Pro tip: If your bananas are too firm, let them sit on the counter for 1-2 days to ripen fully. The darker the spots, the sweeter the cake. For extra richness, I sometimes add 1 tbsp brown sugar to the batter when using less ripe bananas.

Mixing Like a Pro

When combining the wet ingredients, mix on medium speed for exactly 2 minutes—this ensures the sugar and oil emulsify properly with the eggs. Overmixing develops gluten, which can make the cake dense. I use a hand mixer for this step because it gives me better control than a stand mixer. Once the flour is added, stop mixing as soon as you see a few dry streaks—this keeps the crumb tender.

For the chocolate chips, fold them in by hand with a silicone spatula to distribute them evenly. If your batter looks thick, don’t panic—banana batter naturally thickens as it sits. The cake will still rise beautifully. I like to press the batter into the pans gently to eliminate air bubbles, which helps prevent sinking.

Baking Precision

Preheat your oven to 350°F and let it stabilize for 10 minutes before baking. Grease your 9-inch round pans with vegetable oil or line them with parchment paper to prevent sticking. Rotate the pans halfway through baking for even heat distribution. The cake is done when a toothpick inserted in the center comes out clean—this usually takes 25-30 minutes. 🔥

Never overbake! The cake should be springy to the touch and just set in the center. Let it cool in the pans for 10 minutes, then transfer to a wire rack to cool completely. This step is crucial—cooling too quickly can cause cracking when you add the icing.

Ganache Perfection

For the chocolate icing, melt the butter and chopped chocolate over low heat—never high, or the chocolate will seize. Once smooth, remove from heat and whisk in the heavy cream until fully incorporated. Let it cool slightly before adding the powdered sugar, as this prevents the icing from becoming too thin. If it thickens as it cools, reheat gently and whisk again to reach a drizzling consistency.

I love using Ghirardelli or Lindt chocolate bars for the ganache—they melt beautifully and add a luxurious depth of flavor. For extra decadence, sprinkle extra chocolate chips on top of the icing before it sets. This adds texture and makes the cake look stunning.

Assembling Without Fail

Place one cake layer on a serving plate and spread a thin layer of icing on top to act as a glue for the second layer. Press the second layer gently into place, then drizzle the remaining icing over the top and sides. Let it cascade naturally—don’t force it. For a professional finish, use an offset spatula to smooth any drips. 🥘

Let the icing set for 30 minutes before slicing—this ensures clean cuts and prevents the cake from falling apart. Serve at room temperature for the best texture. Each slice will be moist, tender, and topped with a luscious chocolate ganache that melts perfectly with every bite.

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