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Banana Bread Bars with Brown Butter Frosting Recipe

This banana bread bars with brown butter frosting recipe is so incredible you will want to eat the whole pan. It is moist and full of flavor. These bars are absolutely delicious! You will love them!
Course Dessert
Cuisine American
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 24
Calories 275kcal


  • 1 ½ cup sugar
  • 1 cup sour cream
  • 2 eggs
  • ½ cup softened butter
  • 4 ripe bananas mashed
  • 1 tsp vanilla extract
  • 2 cups all purpose flour
  • 1 tsp baking soda
  • ¾ tsp salt
  • For Frosting:
  • ½ cup butter
  • 4 cups powder sugar
  • 2 tsp vanilla
  • 3 tbs whole milk


  • Preheat oven to 375.
  • Flour and grease a 9x13 baking dish.
  • In a large bowl, beat together sugar, sour cream, eggs, and butter until creamy.
  • Blend in bananas and vanilla.
  • Add flour, baking soda, and salt. Mix until completely blended.
  • Spread into pan and bake for 25 to 28 minutes or until golden brown. (Be careful not to overcook. You don't want to dry them out. They will continue to bake as they rest in the pan.)
  • In the last 10 minutes of baking, make the frosting.
  • Heat butter in a medium sauce pan over medium heat until boiling.
  • Watch carefully and stir the butter to prevent it from scorching. Once the butter turns a toasty brown color, remove from heat immediately.
  • Add powdered sugar, vanilla extract, and milk. Mix until smooth. It should be thicker than a glaze but a little thinner than a frosting.
  • Spread on Banana Bread while the bread is still warm.
  • Allow to completely cool before serving. Cut into bars.


Calories: 275kcal | Carbohydrates: 45g | Protein: 2g | Fat: 10g | Saturated Fat: 6g | Cholesterol: 39mg | Sodium: 207mg | Potassium: 102mg | Fiber: 0g | Sugar: 34g | Vitamin A: 330IU | Vitamin C: 1.8mg | Calcium: 20mg | Iron: 0.6mg