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Banana Brownie Squares on parchment paper with bowl of frosting
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Chocolate Banana Brownies with Frosting

Our decadent Banana Brownies are filled with rich dark chocolate and topped with a buttercream maple frosting, making them perfectly moist and wonderfully sweet! 
Course Dessert, Special Occasion
Cuisine American
Keyword Brownie Recipes, Homemade Brownies
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 16 Brownies
Author Melissa

Ingredients

Brownies

  • 3 Bananas, ripened.
  • 1 cup Butter, melted
  • 3 Eggs
  • 1 cup Sugar
  • 1 cup Flour
  • 1/2 cup Cocoa Powder
  • 1 tsp Vanilla
  • 100 g Dark Chocolate, chopped we used Lindt Excellence 90% Cocoa

Frosting

  • 1 cup Butter, softened
  • 3 cups Powdered Sugar
  • 3 tbsp Maple Syrup we used Pure Maple Syrup
  • 3 tbsp Milk
  • 1 cup Chopped Walnuts

Instructions

Brownies

  • Preheat oven to 350 F and line a 9" square pan with parchment paper. 
  • In stand mixer mix together bananas with 1 egg, 1/2 cup sugar and 1/2 cup of butter until well combined. Add in 1/2 cup flour and mix until just incorporated. 
    Remove from bowl (to smaller bowl) and set aside for after. 
  • In stand mixer mix together remaining butter (1/2 c), sugar (1/2 c), flour (1/2 c) eggs (2) and vanilla until well combined. 
  • Add in the cocoa powder and chopped chocolate and mix until just incorporated. Add first batter back to mixer with this one and mix until incorporated, do not over mix. 
  • Pour batter into prepared pan and bake for 25-30 minutes until a toothpick inserted comes out clean. *Remember there is chocolate chunks in the batter so it will still have streaks of chocolate on it! 

Frosting

  • Using a stand mixer (or hand mixer) beat butter on medium speed to ensure it is fully warmed up and whipped. Add in powdered sugar 1 cup at a time and mix well. Mix in Maple Syrup and combine, it will be fairly thick at this point. 
  • Add in milk and mix well, if your icing is still too thick you can add an additional 1 tbsp of milk until it is the consistency you prefer. Remember, you want it thick as it is to spread on top of the brownies and you don't want it dripping. 
  • Frost your brownies once they have cooled completely and top with walnuts (gently press them into the frosting so they don't fall off when cutting).