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The Ultimate Moist Peanut Butter Banana Bread (With Optional Chocolate Swirl)

Two thick slices of chocolate chip peanut butter banana bread on a white plate.

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You need this recipe for incredibly moist peanut butter banana bread! It uses overripe bananas to create a soft, rich loaf perfect for breakfast, a snack, or a comforting homemade treat. This easy, one-bowl recipe is a family favorite.

Ingredients

Scale
  • 1 3/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup unsalted butter, softened
  • 3/4 cup creamy peanut butter
  • 3/4 cup packed brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup mashed very ripe bananas (about 3 medium)
  • 1/4 cup milk (any kind)
  • 1/2 cup chocolate chips (optional, for mixing in or swirling)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and flour a 9×5 inch loaf pan, or line it with parchment paper.
  2. In a medium bowl, whisk together the flour, baking soda, and salt. Set this dry mixture aside.
  3. In a large bowl, beat the softened butter, peanut butter, brown sugar, and granulated sugar with an electric mixer until the mixture is light and fluffy. This step helps create that desired moist texture.
  4. Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
  5. Add the mashed bananas and milk to the wet ingredients. Mix until just combined. Do not overmix.
  6. Gradually add the dry ingredient mixture to the wet ingredients. Mix on low speed until the flour streaks just disappear. Fold in half of the chocolate chips if using them throughout the batter.
  7. Pour half of the batter into your prepared loaf pan. Sprinkle the remaining chocolate chips over the top. If you want a swirl, dollop 1/4 cup of extra peanut butter on top and use a knife to gently swirl it into the batter.
  8. Bake for 55 to 65 minutes, or until a wooden skewer inserted into the center comes out clean or with moist crumbs attached.
  9. Let the bread cool in the pan for 10 minutes before carefully turning it out onto a wire rack to cool completely before slicing.

Notes

  • For the best flavor and moisture, use bananas that are heavily spotted or almost black.
  • To make a peanut butter swirl, warm 1/4 cup of extra peanut butter slightly so it drizzles easily, then swirl it on top before baking.
  • This bread freezes well once cooled. Wrap tightly in plastic wrap and then foil.

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