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Image illustrates sourdough banana muffins.

Sourdough Banana Muffins

These old-fashioned sourdough banana muffins are the perfect blend of cozy, wholesome, and nostalgic. Made with ripe bananas, rich dark brown sugar, and a touch of sourdough discard, they’re wonderfully moist with a subtle tang that sets them apart from your average banana muffin. Whether you’re using up extra sourdough starter or just craving a farmhouse-style treat, these muffins are a comforting way to start the day—or end it with a cup of tea by the fire!
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 12

Equipment

  • 1 mixing bowl
  • 1 muffin pan
  • 12 Muffin liners

Ingredients
  

Wet Ingredients

  • ½ cup sourdough starter discard
  • 3 ripe bananas
  • 2 large eggs
  • 1 cup melted butter
  • 1 cup brown sugar
  • 1 tsp vanilla extract

Dry Ingredients

  • 2 cups all-purpose flour
  • 1 tsp baking soda
  • 2 tsp baking powder
  • 1 tsp salt
  • 1 tsp cinnamon

Optional Toppings

  • ½ cup chopped walnuts or pecans to sprinkle on top

Instructions
 

Prepare the Wet Ingredients

  • Preheat oven to 350°F. Line a muffin tin with paper liners or grease well.
  • In a large bowl, whisk together the melted butter and dark brown sugar until smooth.
  • Add mashed bananas, eggs, sourdough discard, and vanilla. Mix until combined.

Prepare the Dry Ingredients

  • In a separate bowl, whisk together the flour, baking soda, salt, and cinnamon (if using).

Combine the Wet & Dry Ingredients

  • Gently fold the dry ingredients into the wet ingredients until just combined—do not overmix.

Preparing the Muffin Pan

  • Spoon batter into prepared muffin cups, filling about 3/4 full.

Baking the Sourdough Banana Muffins

  • Bake for 20-30 minutes or until a toothpick comes out clean.

Cooling the Muffins

  • Let cool in the pan for 5 minutes, then transfer to a wire rack.

Notes

🧁 Use overripe bananas – The riper, the better! Brown, spotty bananas bring extra sweetness and moisture to your muffins.
🧁 Don't overmix the batter – Stir just until the dry ingredients are incorporated. Overmixing can lead to dense muffins instead of that soft, tender crumb.