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Sourdough Banana Bread

Sourdough banana bread fresh loaf close-up

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A moist, tangy banana bread made with sourdough starter and ripe bananas — the perfect fermented twist on a classic comfort loaf.

Ingredients

Scale
  • 1 cup mashed ripe bananas (about 23 bananas)
  • 1/2 cup sourdough starter (active or discard)
  • 2 eggs
  • 1/3 cup oil or melted butter
  • 1/2 cup sweetener (honey, maple syrup, or sugar)
  • 1 1/2 cups all-purpose flour
  • 1 tsp baking soda
  • 1/2 tsp salt
  • Optional: 1/2 cup chopped walnuts
  • Optional: 1/2 cup chocolate chips
  • Optional: 1 tsp cinnamon

Instructions

  1. Mash bananas
    Mash the bananas in a mixing bowl.
  2. Combine wet ingredients
    Add sourdough starter, eggs, oil or butter, and sweetener. Mix well.
  3. Add dry ingredients
    Stir in flour, baking soda, and salt until just combined. Do not overmix.
  4. Add optional ingredients
    Fold in any optional add-ins like walnuts, chocolate chips, or cinnamon.
  5. Pour into pan
    Pour batter into a greased loaf pan.
  6. Ferment the batter
    Let the batter rest for 30 minutes to 2 hours for fermentation.
  7. Preheat oven
    Preheat oven to 350°F (175°C).
  8. Bake
    Bake for 50–60 minutes, or until a toothpick inserted in the center comes out clean.
  9. Cool and serve
    Cool completely before slicing to preserve moisture.

Notes

Ferment overnight in the fridge for a tangier flavor. Avoid overmixing to keep the crumb tender and moist.

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