Sourdough Banana Bread Recipe

Moist, Flavorful, and the Perfect Way to Use Sourdough Discard

If you’re looking for a delicious way to use up extra sourdough discard, this Sourdough Banana Bread is the perfect recipe. Combining the natural sweetness of ripe bananas with the subtle tang of sourdough starter creates an incredibly moist, tender loaf that’s packed with flavor. Whether you’re enjoying it for breakfast, an afternoon snack, or dessert, this homemade banana bread is comforting, easy to make, and sure to become a family favorite.

One of the best things about this recipe is that it helps reduce food waste by putting leftover sourdough discard to good use. The discard doesn’t make the bread sour—instead, it adds depth of flavor, extra moisture, and a soft texture that keeps the loaf fresh for days.

This recipe is beginner-friendly, requires simple pantry ingredients, and comes together in just a few easy steps.

Why You’ll Love This Recipe

• A great way to use sourdough discard
• Moist, soft, and tender crumb
• Rich banana flavor with a subtle tang
• Easy to make with everyday ingredients
• Perfect for breakfast, snacks, or dessert
• Freezes beautifully
• Customizable with nuts or chocolate chips

Ingredients

Dry Ingredients

• 2 cups all-purpose flour
• 1 teaspoon baking soda
• ½ teaspoon baking powder
• ½ teaspoon salt
• 1 teaspoon ground cinnamon

Wet Ingredients

• 3 ripe bananas, mashed
• ½ cup sourdough discard (unfed or active)
• ½ cup unsalted butter, melted
• ½ cup brown sugar
• ¼ cup granulated sugar
• 2 large eggs
• 1 teaspoon vanilla extract

Optional Mix-Ins

• ½ cup chopped walnuts
• ½ cup pecans
• ½ cup dark chocolate chips
• 2 tablespoons shredded coconut

Kitchen Equipment

• 9×5-inch loaf pan
• Mixing bowls
• Whisk
• Rubber spatula
• Measuring cups and spoons
• Cooling rack

Step-by-Step Instructions

Step 1: Prepare the Oven

Preheat your oven to 350°F (175°C).

Grease a loaf pan with butter or line it with parchment paper for easy removal.

Step 2: Mash the Bananas

Place the ripe bananas in a large bowl and mash them with a fork until mostly smooth. A few small lumps are perfectly fine and add texture.

The riper the bananas, the sweeter and more flavorful your bread will be.

Step 3: Mix the Wet Ingredients

Add the melted butter, brown sugar, granulated sugar, eggs, vanilla extract, and sourdough discard to the mashed bananas.

Whisk until the mixture is smooth and well combined.

Step 4: Combine the Dry Ingredients

In a separate bowl, whisk together the flour, baking soda, baking powder, salt, and cinnamon.

Mixing the dry ingredients separately helps distribute the leavening agents evenly.

Step 5: Make the Batter

Gradually add the dry ingredients to the wet ingredients.

Fold gently with a spatula until just combined.

Avoid overmixing, as this can make the bread dense instead of light and tender.

If using walnuts or chocolate chips, fold them in now.

Step 6: Fill the Pan

Pour the batter into the prepared loaf pan and spread it evenly.

For a bakery-style finish, slice one extra banana lengthwise and place it on top of the batter before baking.

Step 7: Bake

Bake for 55–65 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.

If the top begins to brown too quickly, loosely cover it with aluminum foil during the last 15 minutes of baking.

Step 8: Cool

Allow the banana bread to cool in the pan for 10 minutes.

Carefully transfer it to a wire rack and let it cool completely before slicing.

Cooling allows the loaf to set properly and makes slicing easier.

Tips for the Best Sourdough Banana Bread

Use Very Ripe Bananas

Bananas with brown spots are naturally sweeter and softer, making them perfect for banana bread.

Don’t Overmix

Mix only until the flour disappears to keep the bread soft and fluffy.

Measure Flour Correctly

Spoon the flour into your measuring cup and level it off with a knife instead of scooping directly from the bag.

Use Room Temperature Eggs

Room-temperature eggs blend more evenly into the batter for a smoother texture.

Let It Rest

The flavor becomes even better after a few hours, making this banana bread ideal for baking ahead.

Delicious Variations

Chocolate Chip Banana Bread

Fold in semi-sweet or dark chocolate chips for a rich, dessert-like loaf.

Walnut Banana Bread

Add chopped walnuts for extra crunch and a nutty flavor.

Cinnamon Swirl

Layer cinnamon sugar through the batter before baking for a sweet swirl in every slice.

Tropical Banana Bread

Mix in shredded coconut and chopped pineapple for a tropical twist.

Peanut Butter Banana Bread

Swirl natural peanut butter into the batter before baking for extra richness.

Storage Instructions

Store the cooled banana bread in an airtight container at room temperature for up to 3 days.

For longer freshness, refrigerate it for up to 1 week.

Warm individual slices in the microwave for 10–15 seconds before serving.

Can You Freeze It?

Yes! Sourdough Banana Bread freezes very well.

Wrap the cooled loaf tightly in plastic wrap and then aluminum foil, or place slices in a freezer-safe bag.

Freeze for up to 3 months.

Thaw overnight at room temperature or warm slices directly from frozen.

Nutrition Information (Approximate Per Slice)

• Calories: 240
• Protein: 5g
• Fat: 10g
• Carbohydrates: 34g
• Fiber: 2g
• Sugar: 15g

Nutritional values may vary depending on optional add-ins.

Serving Suggestions

This banana bread is delicious served:

• Warm with butter
• Toasted with cream cheese
• Drizzled with honey
• With peanut or almond butter
• Alongside fresh fruit
• With Greek yogurt
• As an afternoon snack with tea or coffee

It also makes a wonderful addition to breakfast or brunch spreads.

Frequently Asked Questions

Can I use active sourdough starter instead of discard?

Yes. Both active starter and sourdough discard work well in this recipe. Discard is commonly used because the bread relies on baking soda and baking powder for rising.

Does the bread taste sour?

No. The sourdough discard adds a subtle depth of flavor and extra moisture rather than a strong sour taste.

Can I make this recipe dairy-free?

Yes. Replace the butter with melted coconut oil or a dairy-free butter alternative.

Can I use whole wheat flour?

You can replace up to half of the all-purpose flour with whole wheat flour for a heartier loaf. Using all whole wheat flour may result in a denser texture.

Why is my banana bread dense?

Overmixing the batter or adding too much flour are the most common causes. Mix gently and measure ingredients accurately for the best results.

Final Thoughts

Sourdough Banana Bread is a delicious way to transform extra sourdough discard into a moist, flavorful loaf that everyone will love. The combination of sweet ripe bananas, warm cinnamon, and the subtle richness of sourdough creates a bakery-quality treat that’s easy enough to make at home.

Perfect for breakfast, an afternoon snack, or a comforting dessert, this recipe is versatile, freezer-friendly, and easy to customize with your favorite mix-ins. Once you bake this soft and tender banana bread, it will quickly become one of your favorite ways to use sourdough discard and enjoy homemade baking at its finest.