Ingredients
- 1/2 cup (1 stick) butter, softened
- 1 cup granulated sugar
- 2 large eggs
- 1 cup full-fat sour cream
- 1 teaspoon vanilla extract
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup mashed bananas (about 3 bananas)
- 1/2 cup (1 stick) butter, softened (for frosting)
- 8 oz full-fat cream cheese
- 1 teaspoon vanilla extract (for frosting)
- 3 cups powdered sugar
- 2 tablespoons heavy whipping cream
Instructions
- Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- Cream the butter and sugar in a large bowl until light and fluffy.
- Add eggs, sour cream, and vanilla extract; mix until well combined.
- Gradually add flour, baking soda, and salt to the wet ingredients.
- Fold in mashed bananas gently until incorporated.
- Pour the batter into the prepared baking dish and smooth the top.
- Bake for 25–35 minutes, or until a toothpick inserted in the center comes out clean.
- Cool the cake completely before frosting.
- To make the frosting, beat softened butter and cream cheese until smooth.
- Add vanilla extract, powdered sugar, and heavy cream; beat until fluffy and creamy.
- Spread frosting evenly over the cooled cake, slice, and serve.
Notes
- Add chopped walnuts or pecans for crunch.
- A pinch of cinnamon or nutmeg enhances banana flavor.
- Can be baked as a layer cake using two 9-inch round pans.
- Greek yogurt can replace sour cream for a lighter version.
- Store in the refrigerator for up to 5 days.
- Prep Time: 15 minutes
- Cook Time: 25–35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 slice
- Calories: 350
- Sugar: 30g
- Sodium: 220mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 55mg
