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Banana Bread Brownies with Brown Butter Frosting Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.3 from 51 reviews
  • Author: Maya
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: 18 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

These Banana Bread Brownies with Brown Butter Frosting combine the moistness of banana bread with the rich, fudgy texture of brownies. Topped with a decadent brown butter frosting, this dessert is a perfect treat for banana lovers looking for a comforting and flavorful twist.


Ingredients

Scale

Brownies

  • 1 1/2 cups sugar
  • 1 cup sour cream
  • 1/2 cup butter
  • 2 eggs
  • 4 ripe bananas, mashed
  • 2 teaspoons vanilla extract
  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 3/4 teaspoon salt
  • 1/2 cup chopped walnuts

Brown Butter Frosting

  • 1/2 cup butter
  • 4 cups powdered sugar
  • 1 1/2 teaspoons vanilla extract
  • 3 tablespoons milk


Instructions

  1. Preheat and Prepare Pan: Preheat your oven to 375°F (190°C). Grease and flour a 15×10-inch jelly roll pan to prevent sticking.
  2. Mix Wet Ingredients: In a large bowl, beat the sugar, sour cream, 1/2 cup butter, and eggs together until the mixture is creamy and smooth.
  3. Add Bananas and Vanilla: Stir in the mashed ripe bananas and 2 teaspoons vanilla extract until well combined.
  4. Incorporate Dry Ingredients: Gradually mix in the all-purpose flour, baking soda, and salt into the wet mixture until just combined. Avoid overmixing. Gently fold in the chopped walnuts for added texture.
  5. Bake the Brownies: Spread the batter evenly into the prepared jelly roll pan. Bake in the preheated oven for 20–25 minutes, or until the top is golden and a toothpick inserted into the center comes out clean.
  6. Prepare Brown Butter Frosting: While the brownies bake, melt the remaining 1/2 cup butter in a saucepan over medium heat. Continue cooking to brown the butter, watching carefully to avoid burning. Remove from heat and whisk in powdered sugar, 1 1/2 teaspoons vanilla extract, and milk until smooth and creamy.
  7. Frost and Cool: Spread the brown butter frosting over the warm brownies immediately after baking. Let the brownies cool completely in the pan before cutting into 18 servings.

Notes

  • Ensure bananas are very ripe for maximum flavor and sweetness.
  • Watch the butter carefully when browning to avoid burning and a bitter taste.
  • Allow brownies to cool fully before cutting to ensure clean slices.
  • Walnuts can be omitted or substituted with pecans for variation.
  • You can adjust milk quantity in frosting for desired consistency.