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Double chocolate banana layer cake topped with chocolate frosting and banana slices.

Double Chocolate Banana Layer Cake

A decadent cake that combines rich chocolate flavors with the natural sweetness of ripe bananas, offering a delightful balance of textures.
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Course Cake, Dessert
Cuisine American
Servings 8 pieces
Calories 320 kcal

Ingredients
  

Main Ingredients

  • 1.5 cups mashed ripe bananas These provide natural sweetness and moisture.
  • 2 cups all-purpose flour The backbone of your cake structure.
  • 0.75 cups cocoa powder For rich chocolate flavor.
  • 1.5 tsp baking powder For the rise.
  • 1 tsp baking soda To ensure the cake is fluffy.
  • 0.5 tsp salt To enhance all the flavors.
  • 1 cup sugar Sweetness to balance the chocolate.
  • 0.5 cup brown sugar Adds moisture and a hint of caramel flavor.
  • 0.75 cups vegetable oil For richness and moisture.
  • 2 pieces eggs Helps bind the ingredients together.
  • 1 tsp vanilla extract Enhances the flavor.
  • 0.75 cups buttermilk Ensures a tender crumb.
  • 1 cup chocolate chips An irresistible addition for chocolate lovers.

Instructions
 

Preparation

  • Preheat your oven to 350°F (175°C). Prepare your baking pans by greasing and lightly flouring two 8-inch round cake pans.
  • In a large mixing bowl, combine the mashed bananas, sugar, brown sugar, vegetable oil, eggs, and vanilla extract. Mix until smooth and well-combined.

Combining Ingredients

  • In a separate bowl, whisk together the flour, cocoa powder, baking powder, baking soda, and salt.
  • Gradually add the dry mixture to the banana mixture, alternating with buttermilk to keep the batter moist.
  • Gently fold in the chocolate chips.

Baking

  • Divide the batter evenly between the two prepared pans.
  • Bake for 25 to 30 minutes, or until a toothpick inserted into the center comes out clean.

Cooling and Assembling

  • Once baked, remove the cakes from the oven and allow them to cool completely before layering and frosting as desired.

Notes

Use very ripe bananas for maximum sweetness. For extra chocolaty flavor, consider using Dutch-processed cocoa powder. Adding a teaspoon of instant coffee granules can enhance the chocolate flavors. Ensure layers are completely cool before frosting.
Keyword Baking, Banana Cake, chocolate cake, Dessert Recipe, Layer Cake