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The Best Moist Sourdough Discard Banana Bread

Close-up of a moist, caramelized slice of sourdough banana bread on a white plate.
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Welcome to my kitchen! I am sharing my favorite easy recipe for moist sourdough discard banana bread. This zero-waste quick bread uses overripe bananas to create a tender, flavorful loaf perfect for breakfast or a snack.

Ingredients

Scale
  • 1 cup sourdough starter discard (unfed)
  • 1 cup mashed very ripe bananas (about 3 medium)
  • 1/2 cup granulated sugar
  • 1/4 cup packed light brown sugar
  • 1/2 cup unsalted butter, melted
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 3/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 teaspoon ground cinnamon
  • 1/2 cup chopped walnuts or chocolate chips (optional)

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 large bowl, mix the sourdough discard, mashed bananas, granulated sugar, brown sugar, melted butter, egg, and vanilla extract until just combined.
  3. In a separate medium bowl, whisk together the flour, baking soda, salt, and cinnamon.
  4. Add the dry ingredients to the wet ingredients. Mix gently with a spatula until just combined. Do not overmix; a few streaks of flour are fine.
  5. If using, fold in the walnuts or chocolate chips now.
  6. Pour the batter into your prepared loaf pan.
  7. Bake for 50 to 65 minutes, or until a wooden skewer inserted into the center comes out clean or with moist crumbs attached.
  8. 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

  • Using very ripe, spotty bananas adds the most natural sweetness and moisture to your bread.
  • For an extra crunchy top, sprinkle 1 tablespoon of coarse sugar over the batter before baking.
  • This bread stays moist for several days when stored tightly wrapped at room temperature.

Nutrition

Find it online: https://carlacooking.com/sourdough-banana-bread-recipe-moist/