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Banana Bread Cake

A moist and flavorful banana bread cake made with mashed bananas, butter, sugar, sour cream, and a touch of vanilla, topped with a smooth cream cheese frosting.

  • Total Time: 45 minutes
  • Yield: 10 1x

Ingredients

Scale
  • 1/2 cup (1 stick) butter, softened
  • 1½ cups granulated sugar
  • 2 large eggs
  • 1 cup full-fat sour cream
  • 1 teaspoon vanilla extract
  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1 cup mashed bananas (about 3 bananas)
  • For frosting: 1/2 cup butter, softened
  • 8 oz cream cheese, softened
  • 2 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 2–3 tablespoons heavy cream

Instructions

  1. Preheat oven to 350°F (175°C). Grease and flour a baking dish.
  2. In a large bowl, cream the softened butter and granulated sugar until light and fluffy.
  3. Add eggs, sour cream, and vanilla extract. Blend together until combined and creamy.
  4. In a separate bowl, whisk flour, baking soda, and salt. Add to wet ingredients and blend on low speed just until combined.
  5. Gently stir in the mashed bananas. Pour the batter into the prepared pan and spread evenly.
  6. Bake for 25-35 minutes or until a toothpick inserted into the center comes out clean or with moist crumbs.
  7. Let the cake cool completely before frosting.
  8. For the frosting, beat butter and cream cheese until smooth and creamy.
  9. Add powdered sugar and vanilla extract, beating until combined.
  10. Add heavy cream one tablespoon at a time until desired frosting consistency is reached.
  11. Spread frosting evenly over the cooled cake.

Notes

Use very ripe bananas for maximum flavor and moisture. Sour cream adds tenderness and tang. If you prefer, you can substitute buttermilk for sour cream. The cream cheese frosting can be adjusted in thickness by adding more or less heavy cream. Store the cake covered in the refrigerator.

  • Author: Dorothy Miller
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Method: Dessert
  • Cuisine: American

Nutrition

  • Calories: 350
  • Sugar: 38g
  • Sodium: 250mg
  • Fat: 12g
  • Saturated Fat: 7g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 55g
  • Fiber: 2g
  • Protein: 4g
  • Cholesterol: 70mg