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The Most Moist and Easy Blueberry Banana Bread with Optional Crumb Topping

Close-up of a moist slice of blueberry banana bread featuring visible blueberries and a crunchy streusel topping.

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You need this recipe for moist blueberry banana bread that is simple to make. It features juicy berries and the natural sweetness of ripe bananas, making it a perfect, flavorful loaf for breakfast or a snack.

Ingredients

Scale
  • 3 large very ripe bananas, mashed
  • 1/2 cup unsalted butter, melted
  • 3/4 cup granulated sugar
  • 1 large egg, lightly beaten
  • 1 teaspoon vanilla extract
  • 1 3/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 teaspoon ground cinnamon (optional)
  • 1 cup fresh or frozen blueberries
  • For Crumb Topping (Optional): 1/2 cup all-purpose flour, 1/4 cup brown sugar, 1/4 teaspoon ground cinnamon, 2 tablespoons cold unsalted butter, cut into small pieces

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and flour a 9×5 inch loaf pan.
  2. In a large bowl, mix the mashed bananas, melted butter, sugar, egg, and vanilla extract until just combined.
  3. In a separate medium bowl, whisk together the flour, baking soda, salt, and cinnamon, if using.
  4. Gradually add the dry ingredients to the wet ingredients, mixing only until no streaks of flour remain. Do not overmix.
  5. Gently fold in the blueberries.
  6. If using the crumb topping, prepare it now: In a small bowl, combine the flour, brown sugar, and cinnamon for the topping. Cut in the cold butter using your fingers or a pastry blender until the mixture resembles coarse crumbs.
  7. Pour the batter into the prepared loaf pan. If using the topping, sprinkle the crumb mixture evenly over the top of the batter.
  8. Bake for 50 to 65 minutes, or until a wooden skewer inserted into the center comes out clean. If the top browns too quickly, loosely tent the loaf with foil after 40 minutes.
  9. Let the banana bread cool in the pan for 10 minutes before carefully turning it out onto a wire rack to cool completely.

Notes

  • Using very ripe, spotty bananas provides the best natural sweetness and moisture for this easy banana bread recipe.
  • If you use frozen blueberries, do not thaw them; toss them with one tablespoon of the flour mixture before folding them into the batter to prevent sinking.
  • This loaf freezes well. Wrap cooled slices tightly in plastic wrap and then foil for up to three months.

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