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+ servings
5 from 5 votes
A slice of cake topped with whipped cream and banana slices.
Fudge Banana Cake
Prep Time
15 mins
Cook Time
45 mins
Total Time
1 hr

This Fudge Banana Cake is a great way to use up ripe bananas when you don't want to make banana bread. And you can use a cake mix or make it homemade!

Course: Cake, Dessert
Cuisine: American
Keyword: chocolate banana cake, fudge banana cake
Servings: 15
Calories: 505 kcal
Author: Malinda Linnebur
  • 1 cup (100g) old fashioned oats
  • ½ cup (100g) packed brown sugar
  • ¼ cup (56g) butter, cold and cut into small pieces
  • 1 cup (6oz) (170g) semisweet chocolate pieces or chips
  • 1 (14oz) (396g) can sweetened condensed milk; divided
  • cups (210g) all purpose flour (spooned and leveled)
  • 1 cup (230g) sugar
  • 1 cup (200g) packed brown sugar
  • cup (60g) dutch process cocoa powder (spooned and leveled)
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • 3 large ripe bananas, mashed
  • ½ cup (56g) butter, melted
  • 3 large eggs
  • tablespoons vanilla
  • cups (355ml) heavy whipping cream
  1. Preheat oven to 350°F. Lightly grease bottom only of a 9x13 baking pan; set aside.

  1. Combine the brown sugar and butter in a small bowl until crumbly. Stir in oats; set aside.

  1. In a small saucepan, heat chocolate pieces and ⅔ cup sweetened condensed milk over low heat until chocolate is melted, stirring occasionally. Remove from heat; set aside.

  1. In a large mixing bowl, combine the dry ingredients. Add bananas, melted butter, eggs, and vanilla and mix just until well combined.

  2. Spread batter evenly into prepared pan. Drop chocolate mixture by large teaspoonfuls evenly over the batter. Sprinkle with reserved oat mixture. Bake 40-45 minutes or until cake pulls away from the sides of the pan. Cool cake in pan on wire rack. Serve with whipped cream and banana slices if desired.

  1. In the bowl of a stand mixer combine the heavy whipping cream and remaining sweetened condensed milk. Beat on high until stiff peaks form.

Recipe Notes
  1. CAKE MIX VERSION: Replace the flour, sugars, cocoa powder, baking soda, baking powder, salt, and vanilla with a boxed devil's food cake mix. 
  2. STORAGE: Cover the cake tightly with foil. Store at room temperature for up to 3 days or refrigerate for up to 7 days. Allow to come to room temperature before serving.
  3. FREEZER FRIENDLY: Remove cake from pan and wrap tightly in plastic wrap and then in foil. Freeze for up to 3 months. Thaw completely before serving.
Nutrition Facts
Fudge Banana Cake
Amount Per Serving
Calories 505 Calories from Fat 189
% Daily Value*
Fat 21g32%
Saturated Fat 13g81%
Cholesterol 86mg29%
Sodium 336mg15%
Potassium 332mg9%
Carbohydrates 74g25%
Fiber 4g17%
Sugar 50g56%
Protein 6g12%
Vitamin C 3mg4%
Calcium 109mg11%
Iron 5mg28%
* Percent Daily Values are based on a 2000 calorie diet. Since different brands of ingredients have different nutritional information, the information shown is just an estimate.