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Banana Bread Brownies

These are super moist, tender, sweet, and flavorful Banana Bread Brownies with sour cream, chopped walnuts, and mashed bananas.
5 from 30 votes
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Course: Dessert
Cuisine: American
Prep Time: 30 minutes
Cook Time: 10 minutes
Total Time: 40 minutes
Servings: 12

Ingredients

For the banana bread brownies:

  • 1 ½ cups sugar;
  • 1 cup sour cream;
  • ½ cup (1 stick) unsalted butter, at room temperature;
  • 2 eggs, at room temperature;
  • 3 bananas, mashed;
  • 2 tsp vanilla extract;
  • 2 cups all-purpose flour;
  • 1 tsp baking soda;
  • ¾ tsp salt;
  • ½ cup walnuts, chopped.

For the frosting:

  • ½ cup unsalted butter;
  • 3 cups powdered sugar;
  • 1 ½ tsp vanilla extract;
  • 3 tbsp milk.

Instructions

  • Preheat the oven to 375°F. Grease a 9x13 inch baking pan with non-stick cooking spray.
  • In a mixing bowl, mix together sugar, sour cream, softened butter and eggs using an electric mixer. Beat until well combined. Then, add mashed bananas and vanilla extract. Mix until combined.
  • Add the dry ingredients (all-purpose flour, baking soda, salt) to the batter. Mix until combined. Then, add chopped walnuts.
  • Pour the banana batter into the prepared baking pan. Bake in the preheated oven for 20-30 minutes or until ready. Check the readiness of the Banana Bread Brownies using a toothpick inserted in the center, if it comes out clean - the brownies are ready. Remove the baking pan from the oven. Let it cool slightly.
  • While the brownies are cooling, prepare the frosting. In a saucepan, melt butter and heat until medium brown color. Turn off the heat and add powdered sugar (1 cup at a time), stir until combined after each addition. Then, add milk and vanilla extract. Mix until combined. Pour the frosting over the brownies. Spread evenly. Let the banana bread brownies cool completel. Then cut and serve. Enjoy!
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