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Slices of sourdough discard banana bread on wooden table

Sourdough Discard Banana Bread

A moist, from-scratch sourdough discard banana bread made with 3 ripe bananas, butter, brown sugar, and optional chocolate chips.
Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Serving Size 10 (1 loaf)

Equipment

  • loaf pan

Ingredients

  • 1 cup brown sugar
  • ½ cup softened butter + more for greasing the pan
  • 2 eggs, beaten
  • ¼ cup kefir or sour milk
  • cup sourdough discard
  • cups overripe bananas (about 3 medium bananas)
  • 1 cup all purpose flour
  • 1 cup whole wheat flour
  • 1 tsp baking powder
  • ½ tsp baking soda
  • ½ tsp unrefined salt
  • ½ cup chopped dates
  • ½ cup chopped milk chocolate or chocolate chips

Instructions

  • Preheat oven to 180°C (350°F). Grease and line a loaf pan with parchment paper.
  • In a large bowl, cream together the butter and brown sugar until light and fluffy.
  • Beat in the eggs, one at a time, until fully incorporated.
  • Stir in the mashed bananas, sourdough discard, and kefir until smooth.
  • In a separate bowl, whisk together all-purpose flour, whole wheat flour, baking powder, baking soda, and salt.
  • Gently fold the dry ingredients into the wet until just combined—some streaks of flour and small lumps are fine.
  • Fold in the chopped dates and chocolate chips.
  • Pour batter into the prepared loaf pan and smooth the top.
  • Bake 50–60 minutes, until golden and a toothpick inserted in the center comes out clean. If the top browns too quickly, cover loosely with foil halfway through.
  • Cool in the pan for 10 minutes, then transfer to a wire rack to finish cooling.

Notes

Tips

  • Use very ripe bananas for extra sweetness and moisture.
  • Don’t overmix the batter—small lumps are okay.
  • Check the bread before the baking time is up; ovens vary.

Serving Ideas

  • Warm slices with butter or drizzle with honey.
  • Toast for breakfast.
  • Pack in kids’ snack boxes (muffins make portioning easy).
  • Serve with yogurt or raw milk and fresh fruit for a nourishing snack.