Sourdough Discard Banana Bread
Sourdough Discard Banana Bread is that comforting, delicious blend of flavors and textures that showcases just how versatile and delightful banana bread can be. This recipe breathes new life into overripe bananas, transforming them into a sweet, moist treat that’s perfect for breakfast or a midday snack. The richness of the butter and the unique tang from the sourdough discard work wonders, making each bite not only satisfying but unforgettable too!

I remember the first time I stumbled upon this recipe—it was a lightbulb moment. The idea of using sourdough discard felt both revolutionary and a bit like kitchen magic. Not only does it reduce waste, but it also introduces a depth of flavor that’s often missing in traditional banana bread recipes. Easy to make, budget-friendly, and sure to impress, this Sourdough Discard Banana Bread is a recipe everyone needs to try!
Table of Contents
Why You’ll Love This Recipe
- Simple & Quick: Whip it up in about 15 minutes and let the oven do the rest!
- Irresistible Flavor: Imagine the warm aroma filling your kitchen as it bakes—sweet, nutty, and slightly tangy.
- Eye-Catching Appeal: With golden edges and a moist interior, this bread is as delicious as it is photogenic.
- Flexible Serving: Perfect for breakfast, snack time, or dessert; enjoy it plain or slathered with butter.
- Diet-Friendly Options: Easy to adapt with gluten-free flour or dairy-free butter if needed.
Ingredients You’ll Need
- 3 large, very ripe bananas: The more spots, the better! These will add natural sweetness and moisture.
- 8 tbsp unsalted butter, room temperature: For creaminess—melted butter can change the texture.
- 2 large eggs: They bind ingredients and help create a lovely rise.
- ¾ cup granulated sugar: Balances the flavor; feel free to substitute with brown sugar for a richer taste.
- 1 cup sourdough discard: This is the star! It provides flavor, moisture, and helps reduce food waste.
- 2 cups all-purpose flour: Creates the structure; make sure to spoon and level it for accuracy.
- 1 tsp baking soda: A leavening agent that aids in achieving a light and fluffy bread.
- ½ tsp baking powder: Works alongside baking soda for optimal rise.
- ½ tsp salt: Enhances flavor and balances sweetness.
- 1 tsp vanilla extract: For a touch of warmth and depth.
- 1 cup walnuts: Unsalted and roughly chopped, they add texture and nuttiness.
- ½ cup raisins (optional): A hint of sweetness; feel free to omit or substitute with dried cranberries or cherries.
- ½ cup chocolate chips (optional): Because who doesn’t love a sweet surprise in their bread?
How to Make Sourdough Discard Banana Bread
- Preheat the Oven: Set your oven to 350°F (175°C). Grease a 9.25 × 5.25-inch loaf pan with butter or cooking spray to ensure easy release.
- Prepare the Walnuts: In a skillet over medium heat, lightly toast the walnuts for 3-5 minutes, stirring occasionally until fragrant. Allow them to cool before chopping.
- Cream the Butter and Sugar: In a large mixing bowl, use a hand mixer or stand mixer to cream the 8 tablespoons of room temperature unsalted butter with ¾ cup granulated sugar until the mixture is pale and creamy. This step ensures a light texture.
- Incorporate Bananas and Eggs: Add the 3 mashed bananas and 2 large eggs to the bowl; mix until smooth and all ingredients are well blended.
- Mix in Sourdough and Vanilla: Stir in 1 teaspoon vanilla extract and 1 cup sourdough discard until fully combined, bringing those tangy flavors into the mix.
- Combine Dry Ingredients: In a separate medium bowl, whisk together 2 cups all-purpose flour, 1 teaspoon baking soda, ½ teaspoon baking powder, and ½ teaspoon salt.
- Build the Batter: Gradually add the dry mixture to the wet batter, using a spatula to mix just until combined; do not over-mix! The batter should be slightly lumpy.
- Fold in Walnuts and Optional Ingredients: Gently fold in the toasted walnuts, and if using, add ½ cup raisins and/or ½ cup chocolate chips.
Bake to Perfection
- Pour and Bake: Transfer the batter into your prepared loaf pan, smoothing the top with a spatula. Bake in the preheated oven for 55-65 minutes, or until the edges are golden and a toothpick inserted in the center comes out clean.
- Cool: Once baked, remove from the oven and let it cool in the pan for about 10 minutes. Then, transfer the loaf onto a wire rack to cool completely.
Storing & Reheating
Once your Sourdough Discard Banana Bread has cooled completely, store it at room temperature in an airtight container for up to 3 days. For longer storage, keep it in the refrigerator for up to a week, or slice it and freeze it in an airtight bag for up to 3 months. When you’re ready to enjoy a slice, just pop it in the toaster or microwave briefly to refresh its moist texture and warm up those delicious flavors!
Chef’s Helpful Tips
- Avoid overmixing the batter to maintain a light and fluffy crumb.
- Use ripe bananas for optimal sweetness and moisture—frozen bananas work too!
- Ensure your eggs and butter are at room temperature for better incorporation into the batter.
- If you want to make this recipe dairy-free, substitute the unsalted butter with a suitable dairy-free alternative.
- For a nut-free version, simply omit the walnuts or replace them with sunflower seeds for added crunch.
- Feel free to experiment with spices like cinnamon or nutmeg for added flavor!
Sourdough Discard Banana Bread is truly a joy to make and share. The combination of ripe bananas and sourdough discard highlights not just an eco-friendly approach to baking but also produces a bread that’s soft, flavorful, and a little tangy. Each bite is a delightful reminder that good things can come from what’s often left behind!

Recipe FAQs
Can I use store-bought sourdough in this recipe?
What can I substitute for eggs in the recipe?
How do I know when my banana bread is done?
Can I add other mix-ins?
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Sourdough Discard Banana Bread
This Sourdough Discard Banana Bread features a delightful blend of ripe bananas and walnuts, creating a moist, flavorful loaf. It’s a perfect choice for breakfast or as a comforting snack, made easy with simple ingredients like sourdough discard and chocolate chips.
- Prep Time 15 minutes
- Cook Time 95 minutes
- Yield 6 servings 1x
Ingredients
- 3 bananas large, very ripe
- 8 tbsp unsalted butter room temperature
- 2 large eggs
- ¾ cup granulated sugar
- 1 cup sourdough discard
- 2 cups all-purpose flour
- 1 tsp baking soda
- ½ tsp baking powder
- ½ tsp salt
- 1 tsp vanilla extract
- 1 cup walnuts
- ½ cup raisins optional
- ½ cup chocolate chips optional
Instructions
- Preheat the oven to 350°F and grease a 9.25 × 5.25-inch loaf pan.
- Lightly toast the walnuts in a skillet, then chop and let them cool completely.
- In a mixing bowl, cream the butter and sugar together until pale and creamy using a hand or stand mixer.
- Add the mashed bananas and eggs, mixing until smooth.
- Stir in the vanilla extract and room-temperature sourdough discard until fully incorporated.
- In another bowl, combine the flour, baking soda, baking powder, and salt.
- Gradually add the dry ingredients to the batter and mix until just combined using a spatula.
- Fold in the toasted walnuts, raisins, and chocolate chips if using.
Notes
Ensure bananas are very ripe for the best flavor and texture.
Feel free to customize by adding nuts or chocolate chips based on your preference.
Store in an airtight container to keep the bread fresh longer.
Nutrition
- Serving Size: 1 slice
- Calories: 250
- Sugar: 15g
- Sodium: 200mg
- Fat: 12g
- Saturated Fat: 6g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 2g
- Protein: 4g
- Cholesterol: 45mg
Nutritional information is an estimate. The nutritional values for your final dish may vary based on measuring differences and products used.




