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Banana Blondies
4.9 from 123 votes

Banana Blondies

Banana Blondies combine mashed ripe bananas with melted butter, brown sugar, eggs, vanilla, and flour to create a moist batter baked into chewy, golden blondies. A rich brown butter frosting made from browned butter, sugars, milk, and powdered sugar adds depth and a silky finish. The blondies offer a balanced sweetness and tender crumb, highlighted by banana flavor and the caramel notes in the frosting. These treats are ideal for slicing into squares after cooling and frosting, perfect for dessert or a snack.

Prep Time
15 mins
Cook Time
25 mins
Servings: 24
Course: Dessert, Snacks, Others
Cuisine: American

Ingredients

Banana Blondies
  • 1 cup butter melted, salted
  • 1 ½ cups light brown sugar packed
  • 2 large egg
  • 2 teaspoons vanilla
  • 1/4 teaspoon salt
  • 2 cups all-purpose flour
  • 1 cup banana about 2 medium bananas, mashed
Brown Butter Frosting
  • 1/4 cup butter salted
  • 1/2 cup light brown sugar packed
  • 2 Tablespoons milk
  • 1 cup powdered sugar

Instructions

Banana Blondies
    Cup of Yum
  1. Preheat oven to 350°F. Line a 9x13-inch baking dish with parchment paper then spray paper with cooking spray. Set aside.
  2. In the bowl of an electric stand mixer, add melted butter and sugar. Mix until combined. Add in eggs and vanilla and continue mixing until incorporated. Stir in salt, flour and banana until batter is smooth. Spread evenly in prepared pan.
  3. Bake for 25 to 30 minutes, or until center is set. Remove from oven and allow blondies to fully cool before frosting.
Brown Butter Frosting
  1. In a medium saucepan, melt butter over medium-low heat until butter starts to barely brown and becomes very aromatic (about 5 minutes or so).
  2. Add the brown sugar and milk to butter. Stir until mixture comes to just a boil. Remove from heat, allow to cool for 5 minutes. Whisk in powdered sugar until combined.
  3. Spread frosting over cooled blondies. Allow frosting to set before cutting into squares. Enjoy!