Since you loved my BEST Moist Chocolate Chip Banana Bread recipe, I turned that idea into a soft, tender chocolate chip banana cake topped with an ultra-creamy milk chocolate frosting. This version uses ripe bananas for natural sweetness and offers the option to bake with whole wheat all-purpose flour for a slightly heartier texture. You can also use white all-purpose flour if you prefer a lighter crumb.
The cake is soft and moist from mashed bananas, while the chocolate chips provide pockets of rich flavor throughout. The frosting is a silky milk chocolate buttercream made without added cream — the melted chocolate and soft butter create a wonderfully smooth mouthfeel. Use salted butter for the frosting if you want deeper, more rounded chocolate flavor; you can substitute unsalted butter and a pinch of salt if necessary.
How to make Chocolate Chip Banana Cake
Start with very ripe bananas: the skin should show dark spots and the flesh be soft and sweet. Avoid bananas that are bruised or starting to rot. Mash the bananas in a bowl and then whisk in the sugar to create a glossy puree — the sugar helps break the banana down and incorporate air. A fork works fine for mashing if you don’t have a mixer.
Whisk the remaining wet ingredients into the mashed banana: melted butter, eggs, yogurt, and vanilla. In a separate bowl, sift or whisk together the dry ingredients — flour, baking powder, baking soda, and salt — so they are evenly combined. Fold the dry mix into the wet batter gently until just incorporated to keep the cake tender. Finally, fold in the chocolate chips.
Pour the batter into a prepared 8×8-inch pan lined with parchment paper, smooth the top, and bake at 350°F (175°C) until the surface is golden and a skewer inserted in the center comes out clean. Allow the cake to cool in the pan briefly, then transfer to a wire rack to cool completely before frosting.
Can you use frozen bananas?
Frozen bananas are convenient and will work, but they can change texture and release extra liquid when thawed because freezing damages cell structure. For the best texture and structure in a cake, use fresh, very ripe bananas so the starches remain intact and the crumb doesn’t become gummy.
How to make the Milk Chocolate Frosting
This frosting is smooth, creamy, and stable because it contains no added liquid. The key is very soft (spreadable) butter and good-quality milk chocolate. Melt the chocolate, let it cool until it’s just warm or room temperature, and beat it into soft butter along with sifted cocoa powder and icing sugar. Beat the mixture until it becomes light, glossy, and spreadable.
If you prefer a looser consistency, add a tablespoon of room-temperature cream or milk very slowly while beating. Be cautious: adding cold liquid can cause the frosting to seize or separate. If separation occurs, keep beating gently and bring the frosting back to room temperature, or add a little more softened butter to stabilize and re-emulsify it.
Using salted butter in the frosting enhances the chocolate flavor in a way that a pinch of salt added separately can’t fully replicate, thanks to the butter’s inherent richness. That said, unsalted butter plus a small pinch of salt will still produce an excellent frosting.
Chocolate Chip Banana Cake with Creamy Milk Chocolate Frosting
A soft, fluffy banana cake dotted with chocolate chips and finished with an ultra-smooth milk chocolate frosting. This recipe yields a tender crumb and a luscious frosting that highlights the chocolate while letting the banana flavor shine.
Ingredients
Cake:
- 1 ½ cups (195g) whole wheat all-purpose flour, or 215g white all-purpose flour
- 1 ¼ teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- 1 ½ cups (355ml) mashed banana (about 3 large ripe bananas)
- ¾ cup (165g) packed light brown sugar
- ¼ cup (56g) unsalted butter, melted
- 2 large eggs, room temperature
- ¼ cup (60ml) yogurt
- 1 teaspoon vanilla extract
- ½ cup (85g) dark chocolate chips
Frosting:
- ⅓ cup (75g) salted butter, softened (or unsalted + pinch of salt)
- 2 tablespoons (12g) cocoa powder
- ½ cup (60g) icing sugar, sifted
- ½ teaspoon vanilla extract
- 3½ oz (100g) milk chocolate, melted and cooled
Instructions
- Preheat oven to 350°F (175°C). Line an 8×8-inch pan with parchment paper, leaving a 1-inch overhang for easy removal.
- In a medium bowl, whisk together the flour, baking powder, baking soda, and salt.
- In a large bowl, place the mashed banana and whisk in the brown sugar until glossy. Whisk in the melted butter, then add the eggs one at a time. Stir in the yogurt and vanilla until smooth.
- Add the dry ingredients to the wet mixture and fold until just combined. Fold in the chocolate chips.
- Scrape the batter into the prepared pan, smooth the top, and bake 40–45 minutes, or until a skewer inserted in the center comes out clean. Let cool 10 minutes in the pan, then transfer to a wire rack to cool completely.
- For the frosting, beat softened butter until smooth. Sift in cocoa powder and icing sugar and beat until pale and fluffy, about 2 minutes. Beat in vanilla, then add half the cooled melted chocolate and mix until creamy. Add the remaining chocolate and beat until the frosting is thick, silky, and spreadable.
- Once the cake is fully cool, spread the frosting evenly over the top. Slice and serve at room temperature.
If you enjoy banana desserts, this cake offers a great balance of moist banana flavor and chocolate richness, and it adapts easily to whole wheat or all-purpose flour depending on your preference.