Ingredients
- 1 1/2 cups granulated sugar
- 3/4 cup (1 1/2 sticks) unsalted butter
- 1 teaspoon vanilla bean paste
- 3 eggs
- 2 1/2 cups all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup mashed ripe bananas
- 3/4 cup buttermilk
- 1 cup unsweetened cocoa powder
- 2 3/4 cups all-purpose flour
- 2 teaspoons baking soda
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 1 cup (2 sticks) unsalted butter
- softened
- 2 1/4 cups granulated sugar
- 4 eggs
- 1 1/2 teaspoons vanilla bean paste
- 9 ounces semisweet chocolate chips
- 1/2 cup heavy cream
- plus more as needed
- 1 1/2 cups (3 sticks) unsalted butter
- 2/3 can sweetened condensed milk
- 1 1/2 teaspoons vanilla bean paste
- 1 teaspoon banana bakery emulsion
- 2 ripe bananas
- mashed
Instructions
- Preheat the oven to 350 degrees F. Line cupcake pans with cupcake liners (for a total of 44 cupcakes).
- For the banana cake batter: In a large bowl, mix together the sugar, butter, vanilla and eggs.
- In another bowl, sift together the flour, baking powder, baking soda and salt.
- Add the flour mixture to the butter mixture.
- Add the bananas and buttermilk and beat together well.
- For the dark chocolate cake batter: Put the cocoa in a medium heatproof bowl, pour 2 cups boiling water over it and whisk until smooth.
- Let the mixture cool.
- Sift together the flour, baking soda, baking powder and salt in a medium bowl and set aside.
- In a large bowl, cream the butter and sugar together until light and fluffy.
- Beat in the eggs one at time, and then stir in the vanilla.
- Add the flour mixture alternately with the cocoa mixture.
- Fill the cupcake liners one-third full with the banana cake batter.
- Add the dark chocolate cake batter on top, filling the liners about two-thirds full.
- Bake until an inserted toothpick comes out clean, 16 to 19 minutes.
- Allow the cupcakes to cool completely before frosting.
- For the ganache: Melt the chocolate chips and heavy cream in a double boiler, stirring the entire time.
- (Be careful not to get steam or water into your chocolate mixture, as it will seize.)
- Stir until completely melted and smooth.
- Add additional cream as needed a tablespoon at a time.
- For the buttercream: In a large bowl, whip the butter until light and fluffy.
- Gradually add the sweetened condensed milk, vanilla, banana bakery emulsion and bananas.
- Whip until smooth and creamy.
- Pipe the frosting onto the cupcakes.
- Drizzle with the chocolate ganache using a squeeze bottle or spoon.
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