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Crispy Brown Butter Banana Bread with Walnut Streusel

brown butter banana bread - featured image

A moist and flavorful banana bread featuring a crispy brown butter crust and a nutty walnut streusel topping, perfect for cozy mornings or gifting.

Ingredients

Scale
  • 3 medium ripe bananas, mashed
  • 6 tablespoons unsalted butter, browned
  • 3/4 cup granulated sugar (150g)
  • 1/4 cup brown sugar, packed (50g)
  • 2 large eggs, room temperature
  • 1 teaspoon vanilla extract
  • 1 3/4 cups all-purpose flour (220g)
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup chopped walnuts (about 120g)
  • 1/4 cup brown sugar, packed (50g) for streusel
  • 1/2 teaspoon ground cinnamon (optional, for streusel)
  • 2 tablespoons all-purpose flour (15g) for streusel

Instructions

  1. Brown the butter: Place 6 tablespoons (85g) of unsalted butter in a light-colored skillet over medium heat. Stir frequently as it melts, then foams and starts to brown. When it smells nutty and turns golden brown with tiny brown flecks (about 5-7 minutes), remove from heat immediately and let cool slightly.
  2. Prepare the streusel topping: In a small bowl, combine 1 cup (120g) chopped walnuts, 1/4 cup (50g) brown sugar, 2 tablespoons (15g) all-purpose flour, and 1/2 teaspoon ground cinnamon if using. Mix until the sugar and flour coat the nuts evenly. Set aside.
  3. Preheat oven and prep pan: Heat oven to 350°F (175°C). Grease a 9×5-inch loaf pan with butter or line with parchment paper for easier removal.
  4. Mix dry ingredients: In a medium bowl, whisk together 1 3/4 cups (220g) flour, 1 teaspoon baking soda, and 1/2 teaspoon salt.
  5. Combine wet ingredients: In a large bowl, mash 3 ripe bananas until smooth but still a bit chunky. Add the browned butter (just warm, not hot), 3/4 cup (150g) granulated sugar, 1/4 cup (50g) brown sugar, 2 large eggs, and 1 teaspoon vanilla extract. Stir until well combined.
  6. Fold dry into wet: Gently fold the dry ingredients into the wet mixture using a spatula or wooden spoon. Stop mixing as soon as the flour disappears to avoid dense bread.
  7. Transfer batter and add streusel: Pour batter into the prepared loaf pan. Evenly sprinkle the walnut streusel mixture on top, pressing lightly so it sticks but doesn’t sink.
  8. Bake: Place in the oven and bake for 55-65 minutes. Start checking at 55 minutes by inserting a toothpick into the center; it should come out with a few moist crumbs but not wet batter.
  9. Cool: Remove from oven and let cool in pan for 10 minutes, then transfer to a wire rack to cool completely.

Notes

Keep a close eye when browning butter to avoid burning. Do not overmix the batter to keep the bread tender. Press streusel gently onto batter to prevent it from falling off or burning. Cool bread completely before slicing to maintain crust crispness and avoid gummy texture. Tent with foil if streusel browns too quickly during baking.

Nutrition

Keywords: banana bread, brown butter, walnut streusel, moist banana bread, easy banana bread, crispy crust, homemade banana bread