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Banana Bars with Maple Frosting

Banana Bars are in my Top 3 of Best Desserts Ever. They are super delicious, easy to make and the best way to use up ripe bananas!
5 from 4 votes
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Course: Dessert
Cuisine: American
Prep Time: 15 minutes
Cook Time: 35 minutes
Servings: 12
Calories: 436kcal
Author: Megan Porta



  • 1/2 cup butter softened
  • 1 cup light brown sugar
  • 1 egg
  • 2 tsp vanilla extract
  • 1 cup all-purpose flour
  • 1/2 tsp baking powder
  • 1 tsp salt
  • 1 tsp cinnamon
  • 2 bananas mashed


  • 1/2 cup butter softened
  • 2 cups powdered sugar
  • 3/4 cup dark brown sugar
  • 1/2 tsp salt
  • 1 tsp vanilla extract
  • 1/2 cup real maple syrup


  • Preheat oven to 350 degrees F. Line an 8x8 square baking dish with parchment paper. Lightly spray with cooking spray and set aside. Prepare the bars. In a large mixing bowl, combine butter, light brown sugar, egg and vanilla. Mix until creamy.
  • In a medium bowl, combine flour, baking powder, salt and cinnamon. Mix well and gradually add to batter. Mix until incorporated. Add mashed bananas and stir until combined. Pour into prepared baking dish. Spread batter evenly in pan with a spatula and bake in the preheated oven for 35-40 minutes, or until a toothpick inserted into the center comes out clean. Let cool.
  • While the bars are baking, prepare the frosting. In a mixing bowl, combine the butter, powdered sugar, dark brown sugar, salt and vanilla. Mix well. Gradually pour in the maple syrup while mixing. Mix on medium speed until frosting is fluffy and smooth.
  • When bars are cooled, spread frosting evenly over the top. Refrigerate until ready to serve and cut into small squares. Store in a sealed container in the refrigerator.


  • Half of the brown sugar in the bars can be replaced with granulated sugar, if desired.
  • Add 1 cup semi-sweet chocolate chips to the batter for a chocolatey version of these bars!
  • 1/2 cup peanut butter would be a delicious addition to the batter!
  • Let both butter and egg sit at room temperature for 30 minutes if at all possible.


Calories: 436kcal | Carbohydrates: 73g | Protein: 2g | Fat: 16g | Saturated Fat: 10g | Cholesterol: 54mg | Sodium: 462mg | Potassium: 159mg | Fiber: 1g | Sugar: 61g | Vitamin A: 505IU | Vitamin C: 2mg | Calcium: 64mg | Iron: 1mg
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