If you have ripe bananas hanging around, you’ll want to try this delicious sheet cake. It’s a rich banana cake swirled with Nutella and topped with a fudgy chocolate hazelnut frosting. This cake is delicious even on its own without the icing!
Ingredients:
- 2 1/2 cups all-purpose flour
- 1 teaspoon baking powder
- 1 teaspoon baking soda
- 1 teaspoon salt
- 3-4 large ripe bananas, mashed
- 3/4 cup sugar
- 3/4 cup brown sugar
- 4 eggs, at room temperature
- 1/2 cup vegetable oil (I use olive oil)
- 1 cup buttermilk
- 1 tsp vanilla extract
- 2/3 cup Nutella, softened
Frosting:
- 1/2 cup salted butter, melted & cooled
- 1/4 cup cocoa powder
- 1 cup powdered sugar
- 1/4 cup Nutella
- 1/4 tsp salt
- 2 tsp whipping cream
Method:
- Preheat oven to 350F and grease a 9×13 inch baking pan.
- In a bowl, stir together the flour, baking powder, baking soda and salt.
- In a separate bowl, whisk together the bananas, sugars, eggs, oil, buttermilk and vanilla. Mix until fully incorporated.
- Add the wet ingredients to the dry mix and stir until fully combined. Pour batter into prepared pan.
- Next, warm the Nutella up so it is easy to spread (I do this in the microwave for a few seconds.) Dollop spoonfuls of the Nutella onto the batter. Use a knife or a wooden skewer to swirl the Nutella into the batter.
- Bake for 30-35 minutes, or until a toothpick inserted in center of cake comes out clean.
- Cool cake completely before frosting.
- For the frosting: whisk all the frosting ingredients together in a bowl. Mix until light and fluffy. Spread frosting over cooled cake.

