Sourdough Discard Banana Bread

If you’ve ever wondered what to do with extra sourdough starter, this sourdough banana bread is the perfect solution. It’s moist, flavorful, and has just the right balance of sweetness and tang. The sourdough discard gives this classic banana bread a subtle depth of flavor, making it extra special without being overpowering.

Whether you call it discard banana bread or sourdough discard banana bread, this recipe is one you’ll want to make again and again. It’s a delicious way to reduce kitchen waste while baking a loaf your whole family will love.

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Why Bake with Sourdough Discard?

Sourdough discard is the portion of your starter you would normally throw away when feeding it. Instead of wasting it, you can use it in baked goods like pancakes, cookies, and quick breads. In this banana bread recipe, sourdough discard adds a slight tang and extra moisture, enhancing the flavor and texture.

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Ingredients You’ll Need

• 2 cups all-purpose flour
• 1 teaspoon baking soda
• ¼ teaspoon salt
• ½ teaspoon ground cinnamon
• ½ cup (8 Tbsp) unsalted butter, softened to room temperature
• ¾ cup packed light or dark brown sugar
• 2 eggs
• ⅓ cup (80g) sourdough discard (unfed starter)
• ¼ cup full fat yogurt or sour cream
• 1 ½ cups mashed bananas (about 3–4 ripe bananas)
• 1 teaspoon pure vanilla extract
• Optional: ¾ cup chopped pecans or walnuts, or 1 cup semi-sweet chocolate chips

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Step-by-Step Instructions

1. Preheat the Oven

Set your oven to 350°F (177°C). Grease a 9x5-inch loaf pan or line it with parchment paper.

2. Mix the Dry Ingredients

In a medium bowl, whisk together flour, baking soda, salt, and cinnamon.

3. Cream the Butter and Sugar

In a large mixing bowl, beat the softened butter and brown sugar until smooth and creamy.

4. Add Eggs, Sourdough Discard, and Bananas

Mix in the eggs one at a time. Stir in the sourdough discard, mashed bananas, and vanilla extract until well combined.

5. Combine Wet and Dry Ingredients

Gradually add the dry mixture to the wet ingredients, stirring gently until no streaks of flour remain. Be careful not to overmix.

6. Add Mix-Ins

If desired, fold in chopped nuts or chocolate chips.

7. Bake the Bread

Pour the batter into the prepared loaf pan. Bake for 55–65 minutes, or until a toothpick inserted into the center comes out clean.

8. Cool and Slice

Allow the banana bread to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.

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Tips for the Best Sourdough Banana Bread

• Use very ripe bananas: The darker and spottier, the better for sweetness and flavor.
• Don’t skip the discard: It adds moisture and a unique depth of flavor.
• Add mix-ins: Nuts add crunch while chocolate chips turn this bread into a dessert-like treat.
• Store well: Wrap leftovers tightly and store at room temperature for up to 3 days, or freeze slices for quick breakfasts.

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Why You’ll Love This Recipe

This sourdough banana bread is:

• Moist, soft, and flavorful
• A great way to use up sourdough discard
• Perfect for breakfast, snacks, or dessert
• Freezer-friendly and easy to make ahead

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When you’re looking for a way to use up sourdough discard, banana bread is always a winning choice. This sourdough discard banana bread has the classic taste you love with an extra layer of flavor thanks to the starter. It’s a simple recipe that’s as practical as it is delicious—proof that sourdough can go far beyond bread loaves.

Bake a loaf today and enjoy a warm slice with butter or a drizzle of honey—you won’t regret it.