Soft Banana Bread Brownies

These Banana Bread Brownies combine the rich, moist texture of banana bread with the fudgy softness of brownies. They’re sweet, tender, perfectly flavored with ripe bananas, and topped with a smooth brown butter frosting that melts right in. This easy dessert is perfect for brunch, holidays, potlucks, or anytime you have extra bananas on hand.

Why You’ll Love This Recipe

  • Extra moist banana flavor in every bite
  • Soft brownie-like texture, sweet, tender, and fudgy
  • Made with simple ingredients you already have
  • Great for using up ripe bananas
  • Bakes in just one pan
  • Brown butter frosting adds the perfect finishing touch

Ingredients

Flat lay of ingredients for banana bread brownies

For the Banana Brownies

  • 1 cup mashed ripe bananas (about 2 large)
  • 1 cup granulated sugar
  • 1/2 cup unsalted butter, melted
  • 1 teaspoon vanilla extract
  • 2 large eggs
  • 1 1/2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/4 teaspoon salt

For the Brown Butter Frosting

  • 1/4 cup unsalted butter
  • 1 1/2 cups powdered sugar
  • 2 tablespoons milk
  • 1/2 teaspoon vanilla extract

Step-by-Step Instructions

Step-by-step collage of making banana bread brownies

  1. Preheat oven to 350°F and line an 8×8-inch pan with parchment paper.
  2. In a bowl, whisk together melted butter, sugar, eggs, and vanilla.
  3. Add mashed bananas and mix until smooth.
  4. Add flour, baking soda, and salt. Stir until just combined.
  5. Pour batter into the prepared pan and bake for 22–28 minutes, or until a toothpick comes out clean.
  6. For the frosting: melt butter in a saucepan until it turns golden brown and smells nutty.
  7. Remove from heat and whisk in powdered sugar, milk, and vanilla until smooth.
  8. Spread frosting over warm brownies for a glossy finish.
  9. Cool, slice, and enjoy.

Tips & Variations

  • Use very ripe bananas for best flavor.
  • Add chocolate chips or chopped walnuts for texture.
  • For thicker brownies, use a smaller pan (8×8).
  • Frost while warm for shiny glaze; frost when cool for thicker icing.
  • Replace half the flour with oat flour for extra softness.

Storage & Freezer Instructions

  • Store brownies in an airtight container at room temperature for up to 3 days.
  • Refrigerate for up to 1 week.
  • Freeze (unfrosted or frosted) for up to 2 months.
  • Thaw overnight in the fridge or at room temperature.

Serving & Pairing Ideas

Stack of banana bread brownies with frosting

  • Enjoy warm with a drizzle of caramel
  • Pair with milk, coffee, or a chai latte
  • Serve with vanilla ice cream for a dessert-style treat
  • Cut into small squares for parties or brunch tables

Frequently Asked Questions

Can I make this recipe without frosting?

Yes! They’re delicious plain or dusted with powdered sugar.

Can I replace the butter?

Use coconut oil or vegetable oil for a dairy-free version.

Can I double the recipe?

Yes, bake in a 9×13-inch pan for 28–34 minutes.

Can I use frozen bananas?

Yes, just thaw and drain excess liquid before measuring.

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Banana Bread Brownies cut into squares with frosting

Banana Bread Brownies


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  • Author: Myla
  • Total Time: 38 minutes
  • Yield: 12 brownies 1x

Description

Soft and moist banana bread brownies topped with a rich brown butter frosting, perfect for using ripe bananas and creating a tender, dessert-style treat.


Ingredients

Scale

1 cup mashed ripe bananas

1 cup granulated sugar

1/2 cup unsalted butter, melted

1 teaspoon vanilla extract

2 large eggs

1 1/2 cups all-purpose flour

1 teaspoon baking soda

1/4 teaspoon salt

1/4 cup unsalted butter (for frosting)

1 1/2 cups powdered sugar

2 tablespoons milk

1/2 teaspoon vanilla extract


Instructions

1. Preheat oven to 350°F and line an 8×8-inch pan with parchment paper.

2. Whisk melted butter, sugar, eggs, and vanilla.

3. Add mashed bananas and mix smooth.

4. Add flour, baking soda, and salt; stir until combined.

5. Bake 22–28 minutes.

6. Brown butter in a saucepan; whisk in powdered sugar, milk, and vanilla.

7. Spread frosting over warm brownies.

8. Cool, slice, and serve.

Notes

Use very ripe bananas.

Add nuts or chocolate chips for texture.

Frost warm for shiny glaze.

Double recipe for 9×13 pan.

  • Prep Time: 10 minutes
  • Cook Time: 28 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 square
  • Calories: 240
  • Sugar: 24
  • Sodium: 95
  • Fat: 10
  • Saturated Fat: 6
  • Unsaturated Fat: 3
  • Trans Fat: 0
  • Carbohydrates: 34
  • Fiber: 1
  • Protein: 3
  • Cholesterol: 40

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