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Close up of Banana Brownies on crumpled brown parchment paper showing moist fudgy interior. (Banana Brownies)

Banana Brownies: The Ultimate Fudgy Dark Chocolate Treat with a Shiny Crackle Crust

Decadent Banana Brownies featuring a dense dark chocolate base, vibrant banana swirls, and a signature shiny crackle top. A perfect fudgy texture that balances ripe fruit sweetness with rich cocoa depth.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 16 bars
Course: Dessert, Snack
Cuisine: American
Calories: 210
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 1/2 cup Unsalted Butter Melted (115g)
  • 1 cup Granulated Sugar 200g
  • 3/4 cup Dark Cocoa Powder 75g, Dutch-processed
  • 2 large Eggs Room temperature
  • 1 tsp Vanilla Extract 5ml
  • 3/4 cup All-Purpose Flour 95g
  • 1/2 tsp Sea Salt 3g
  • 2 medium Ripe Bananas Approx 200g, mashed for swirling

Equipment

  • 1 8x8-inch square baking pan Lined with parchment paper
  • 2 Mixing bowls One for chocolate, one for eggs

Method
 

Preparation
  1. Preheat oven to 350°F (175°C). Line an 8x8 inch pan with parchment paper, leaving an overhang for easy removal.
  2. Whisk melted butter and cocoa powder together until smooth. This ensures a deep, dark cocoa color.
  3. In a separate bowl, beat eggs and sugar for 3-5 minutes until pale and thick to create the crackle crust.
  4. Fold the chocolate mixture into the eggs. Gently stir in the flour, vanilla, and salt until just combined.
  5. Pour batter into pan. Spoon mashed banana on top and use a knife to create golden-brown swirls.
  6. Bake for 25-30 minutes until the top is shiny and the center is slightly set. Look for moisture droplets on the sides when cut.

Notes

Use very ripe bananas for the best flavor.
Chill before cutting to ensure clean square edges.