Description
A moist and tender banana chocolate chip layer cake filled with ripe banana flavor and mini chocolate chips, topped with a rich and creamy chocolate buttercream frosting.
Ingredients
Scale
- 2 3/4 cups all-purpose flour
- 1 teaspoon baking powder
- 1 teaspoon baking soda
- 1 teaspoon cinnamon
- 1/2 teaspoon salt
- 1/2 cup unsalted butter, softened
- 1/4 cup vegetable or canola oil
- 1 cup granulated sugar
- 1/2 cup brown sugar, packed
- 2 teaspoons vanilla extract
- 3 large eggs, room temperature
- 1 1/4 cups mashed bananas (about 3–4 bananas)
- 1 1/2 cups buttermilk
- 1 cup mini chocolate chips
- 1 1/4 cups unsalted butter, softened
- 3/4 cup cocoa powder
- 3–4 cups powdered sugar
- 1 teaspoon vanilla extract
- 1/2 teaspoon salt
- 3–4 tablespoons whipping cream or milk
Instructions
- Preheat oven to 350°F (180°C or 170°C fan). Line two 9-inch cake pans with parchment paper and grease the sides.
- In a medium bowl, whisk together flour, baking powder, baking soda, cinnamon, and salt.
- In a large bowl, beat butter, granulated sugar, and brown sugar until smooth. Mix in the oil.
- Add vanilla extract and beat in eggs one at a time, scraping down the bowl as needed.
- Whisk in the mashed bananas.
- With mixer on low, beat in one-third of the dry ingredients, then half of the buttermilk. Continue alternating dry ingredients and buttermilk, mixing gently until combined.
- Fold in mini chocolate chips.
- Divide batter evenly between pans and bake for 35–40 minutes, until a toothpick inserted in the center comes out with a few crumbs.
- Cool in pans for 20 minutes, then transfer to a wire rack to cool completely.
- For frosting, beat butter until smooth. Mix in 2 cups powdered sugar.
- Add cocoa powder, vanilla, and salt. Gradually beat in remaining powdered sugar, alternating with cream or milk, until desired consistency is reached.
- Level cooled cake layers if needed. Place one layer on a serving plate, spread frosting on top, add second layer, apply a thin crumb coat, chill briefly, then frost fully and decorate as desired.
Notes
- Prep Time: 1 hour
- Cook Time: 35-40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 620
- Sugar: 45g
- Sodium: 250mg
- Fat: 34g
- Saturated Fat: 20g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 75g
- Fiber: 2g
- Protein: 7g
- Cholesterol: 90mg