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banana bread brownie
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5 from 2 votes

Banana Bread Brownies

These Banana Bread Brownies are made up of gooey, chocolate-y brownies swirled together with sweet and moist banana bread. They're so easy to make and so good!
Prep Time20 mins
Cook Time1 hr
Total Time1 hr 20 mins
Course: Dessert
Cuisine: American
Keyword: banana bread, brownies, easy
Servings: 9 brownies
Calories: 518kcal
Author: Jennifer Debth


Brownie Layer

  • 3/4 cups all purpose flour spoon and leveled
  • 1/4 cup unsweetened cocoa powder spoon and leveled
  • 1/2 teaspoon salt
  • 1 cup granulated sugar
  • 2 large eggs room temperature
  • 1/2 cup unsalted butter melted
  • 1/2 tablespoon vanilla extract
  • 1 cup semi-sweet chocolate chunks

Banana Bread Layer

  • 1/4 cup unsalted butter melted
  • 1/4 cup granulated sugar
  • 1/4 cup dark brown sugar packed
  • 2 tablespoons buttermilk room temperature
  • 1/2 tablespoon vanilla extract
  • 1 large egg room temperature
  • 1/2 cup mashed very ripe banana
  • 1 cup all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon ground cinnamon
  • 1/4 teaspoon salt


Brownie Layer

  • Preheat oven to 350 degrees F and spray an 8x8 baking pan with cooking spray, then line with a parchment paper sling.
  • In a large bowl, mix together flour, cocoa powder, salt, sugar, eggs, butter, and vanilla until *just* combined.
  • Stir in chocolate chunks, then set aside.
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Banana Bread

  • In a large bowl, whisk together melted butter, granulated sugar, brown sugar, buttermilk, vanilla, and egg until well combined.
  • Stir in mashed bananas.
  • Fold in flour, baking soda, cinnamon and salt until *just* combined. Don’t over mix!
  • Pour half the banana batter into the prepared pan, then use a cookie scoop to scoop half the brownie batter on top.
  • Gently swirl the batters together with a knife.
  • Repeat with the remaining batters.
  • Bake in preheated oven for 40 minutes.
  • Cover with tin foil and cook for an additional 15-20 minutes. The center may still be a little gooey, but the top should be golden brown and the outside edges should be set - an inserted toothpick will come out mostly clean.
  • Lift the bars out of the pan immediately.
  • Cool for 10 minutes on a cutting board, then cut and serve.
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Serving: 1brownie | Calories: 518kcal | Carbohydrates: 68g | Protein: 7g | Fat: 25g | Saturated Fat: 15g | Trans Fat: 1g | Cholesterol: 104mg | Sodium: 289mg | Potassium: 264mg | Fiber: 3g | Sugar: 43g | Vitamin A: 587IU | Vitamin C: 1mg | Calcium: 44mg | Iron: 3mg