Have a few overripe bananas on your kitchen counter? These Sourdough Discard Banana Muffins are a delicious way to use them. Buttery with a crunchy turbinado sugar topping, they’re sweet and full of banana flavor — perfect for breakfast or brunch and likely to become a family favorite.

Why you’ll love this recipe
- This recipe is an excellent way to use sourdough discard, though you can substitute active starter if you prefer.
- Overripe bananas are ideal — they add natural sweetness and intense banana flavor.
- Quick and easy: these muffins come together in under an hour.
- Highly adaptable: stir in oats, chocolate chips, blueberries, or nuts to suit your taste.
- Muffins freeze well, so you can bake a batch and save some for later.
Ingredients
These muffins require only a few key ingredients to create moist, flavorful results.

- Sourdough discard: Use unfed discard at room temperature. This recipe is written for a 1:1 ratio starter (equal parts water and flour). If your starter uses a different hydration, you may need to make minor adjustments.
- Bananas: Overripe bananas work best. Mash them but leave some small chunks if you like a bit of texture; they’ll soften while baking.
See the recipe card below for full ingredient amounts and detailed directions.
Substitutions & Variations
This recipe is flexible. Try one of these variations:
- Active sourdough starter: Replace the discard with 200g active starter. Muffins may rise a bit more.
- Oats topping: Swap the turbinado sugar for a sprinkle of old-fashioned oats for a different texture.
- Nuts: Stir in ¼ cup chopped walnuts or almonds for added crunch.
- Chocolate chips: Fold in ½ cup chocolate chips for a sweeter treat.
- Blueberry-banana: Use about ½ cup mashed banana (1 banana) and fold in ½ cup fresh blueberries.
How to Make Sourdough Discard Banana Muffins
These muffins come together in a few straightforward steps. The full recipe card below includes exact measurements and bake times.

- Step 1: Cream the butter and granulated sugar until light and fluffy, about 2–3 minutes.

- Step 2: Add the egg and vanilla extract and mix until combined.

- Step 3: Whisk together the dry ingredients (flour, cinnamon, baking powder, baking soda, salt, nutmeg) in a separate bowl.

- Step 4: Add the sourdough discard and mashed bananas to the butter mixture, then add the dry ingredients. Stir slowly until just combined and then mix briefly on medium to form an even batter.

- Step 5: Line a 12-cup muffin pan with liners and fill each cup about two-thirds full. A cookie scoop helps ensure even portions.

- Step 6: Sprinkle the tops with turbinado sugar for crunch. Bake 30–35 minutes at 375°F (190°C), or until golden and a toothpick comes out clean.
- Step 7: Cool the muffins in the pan for a few minutes, then transfer to a rack to cool completely or serve warm.
Expert Baking Tips
- Use a cookie scoop to portion batter evenly and speed up assembly.
- Line muffin cups with parchment liners or grease the pan to prevent sticking.
- Bake until the tops are golden and a toothpick comes out clean for best texture.
- Let muffins rest a few minutes before removing from the pan — they finish setting and release more easily.
Storage
Room temperature: Store in an airtight container for up to 3 days. Reheat briefly (15–30 seconds) in the microwave to serve warm.
Freezer: Once fully cooled, freeze in an airtight container or bag for up to 3 months. Thaw at room temperature and reheat for 30–60 seconds in the microwave.
Recipe FAQs
Liners are recommended to prevent sticking. If you skip them, be sure to grease the muffin pan well.
If muffins stick, let them cool completely. As they cool they typically release from the liner more easily.
More Sourdough Discard Breakfast Recipes
-
Sourdough Cranberry Orange Muffins
-
Sourdough Sweet Potato Waffles
-
Sourdough Discard Scones (Base Recipe)
-
Sourdough Discard Blueberry Muffins
If you try these Sourdough Discard Banana Muffins, please leave a star rating and share your experience in the comments. Happy baking!

Sourdough Discard Banana Muffins
Jessica Vogl
Equipment
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Kitchen scale
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12-cup muffin pan
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Parchment paper or muffin liners
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Cookie scoop (optional)
Ingredients
- ½ cup unsalted butter, softened
- 1 ¼ cups granulated sugar
- 1 egg (room temperature)
- 2 teaspoons vanilla extract
- 1 ½ cups all-purpose flour
- 1 ½ teaspoons ground cinnamon
- 1 ½ teaspoons baking powder
- ½ teaspoon baking soda
- ½ teaspoon kosher salt
- ¼ teaspoon nutmeg
- 200 grams sourdough discard (about ¾ cup), unfed and at room temperature
- 1 cup mashed bananas (about 2 medium)
- 1 Tablespoon turbinado sugar for topping
Instructions
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Preheat the oven to 375°F (190°C) and line a 12-cup muffin pan with liners.
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Whisk together the flour, cinnamon, baking powder, baking soda, salt, and nutmeg. Set aside.
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In a large bowl, cream the softened butter and granulated sugar until light and fluffy, about 2–3 minutes. Add the egg and vanilla and mix to combine.
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Mix in the sourdough discard and mashed bananas. Add the dry ingredients and mix until just combined with no dry streaks.
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Fill the lined muffin cups about two-thirds full using a cookie scoop or spoon. Sprinkle each top with turbinado sugar.
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Bake for 30–35 minutes until lightly golden and a toothpick inserted in the center comes out clean. Cool in the pan for 10 minutes, then transfer to a rack to finish cooling or serve warm.
Nutrition
Carbohydrates: 42 g
Protein: 3 g
Fat: 8 g