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Banana Bars with Brown Butter Frosting

These delicious banana bars feature a tender crumb and a rich brown butter frosting, perfect for an afternoon treat or dessert.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 9 bars
Course: Dessert, Snack
Cuisine: American
Calories: 250
Ingredients Method Notes

Ingredients
  

Bar Ingredients
  • 3/4 cup sugar
  • 1/2 cup sour cream Can substitute with Greek yogurt.
  • 1/4 cup butter, softened
  • 1 large egg
  • 1 cup very ripe bananas, mashed Use bananas with dark skins for best flavor.
  • 1 tsp vanilla extract
  • 1 cup all-purpose flour
  • 1/2 tsp baking soda
  • 1/2 tsp salt
Frosting Ingredients
  • 1/2 cup (1 stick) butter To be browned.
  • 2 cups powdered sugar
  • 1 tsp vanilla extract
  • 1 1/2 tbsp milk Add incrementally to adjust frosting consistency.

Method
 

Preparation
  1. Preheat oven to 375°F (190°C) and line an 8x8 baking dish with parchment paper.
  2. In a large bowl, beat together sugar, sour cream, butter, and egg until creamy.
  3. Blend in the mashed bananas and vanilla extract.
  4. Add flour, baking soda, and salt, stirring until just combined.
  5. Spread the batter evenly into the pan.
Baking
  1. Bake for 20 to 25 minutes or until golden brown. Let cool slightly, then remove from the pan using the parchment.
Frosting
  1. In a medium saucepan over medium-high heat, brown the butter until brown bits form.
  2. Pour the brown butter into a heat-proof bowl and whisk.
  3. Add powdered sugar and vanilla, mixing until smooth.
  4. Spread the icing on the bars after they have cooled for about 10-15 minutes.

Notes

Cut into generous squares while the frosting is still soft. Serve slightly warm or at room temperature. Store in an airtight container at room temperature for up to 2 days, refrigerate for up to 5 days, or freeze for up to 2 months.