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Moist Banana Bread Brownies with Brown Butter Frosting

Close-up of a moist banana bread brownies square topped with creamy peanut butter frosting.
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Make these moist banana bread brownies that combine rich chocolate flavor with sweet banana bread texture. Top them with a simple brown butter frosting for a decadent dessert.

Ingredients

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  • 1 cup (2 sticks) unsalted butter, plus more for greasing
  • 1 cup granulated sugar
  • 1/2 cup packed light brown sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1 cup mashed ripe bananas (about 2–3 medium bananas)
  • 1/2 cup chocolate chips (optional)
  • For the Brown Butter Frosting:
  • 1/2 cup (1 stick) unsalted butter
  • 2 cups powdered sugar, sifted
  • 1/4 teaspoon salt
  • 1–2 tablespoons milk or cream

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and line a 9×9 inch baking pan with parchment paper, leaving an overhang for easy removal.
  2. In a large bowl, cream together the 1 cup of butter, granulated sugar, and brown sugar until light and fluffy.
  3. Beat in the eggs one at a time, then stir in the vanilla extract.
  4. In a separate medium bowl, whisk together the flour, cocoa powder, baking soda, and salt.
  5. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Do not overmix.
  6. Gently fold in the mashed bananas and chocolate chips, if using.
  7. Spread the batter evenly into the prepared baking pan.
  8. Bake for 30 to 35 minutes, or until a toothpick inserted near the center comes out with moist crumbs attached, not wet batter.
  9. Let the brownies cool completely in the pan on a wire rack.
  10. Prepare the Brown Butter Frosting: Melt the 1/2 cup of butter in a small saucepan over medium heat. Continue cooking, swirling occasionally, until the butter foams, then brown bits form at the bottom and it smells nutty (about 5-7 minutes). Immediately pour the browned butter into a heatproof bowl to stop cooking. Let it cool slightly.
  11. In a bowl, whisk the sifted powdered sugar and salt into the slightly cooled brown butter.
  12. Add milk or cream, one tablespoon at a time, until the frosting reaches a smooth, spreadable consistency.
  13. Once the brownies are completely cool, spread the brown butter frosting evenly over the top. Cut into squares and serve.

Notes

  • Use very ripe, spotty bananas for the best moisture and banana flavor in your brownies.
  • For fudgier results, slightly underbake the brownies by 2-3 minutes.
  • If you do not want to make the frosting, you can dust the cooled brownies with powdered sugar instead.

Nutrition

Find it online: https://yumdrizzle.com/banana-bread-brownies/