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This easy Sourdough Banana Bread recipe is the cozy, no-fuss way to use up sourdough discard. It’s sweet from ripe bananas, lightly tangy from discard, soft and tender in the middle, and totally customizable with walnuts, chocolate chips, cinnamon, or whatever banana bread add-ins you love.
Table of Contents
- Kellie’s Note Better Banana Bread
- Why You’ll Love My Sourdough Banana Bread
- Ingredients For Sourdough Banana Bread
- How to Make Sourdough Banana Bread
- Kellie’s Tips for the Best Sourdough Banana Bread
- What to Serve with Sourdough Banana Bread
- How to Store Leftovers
- Sourdough Banana Bread Variations
- More Easy Sourdough Discard Recipes
- Sourdough Banana Bread Recipe
Kellie’s Note
Better Banana Bread
I’m always looking for ways to use up sourdough discard because, honestly, throwing it away feels like tossing out flavor. And if there’s one thing I will never turn down, it’s a warm, thick slice of banana bread with a little butter melting into the top.
This Sourdough Banana Bread is one of my favorite discard recipes because it takes everything we already love about classic banana bread and gives it a little extra personality. The sourdough discard doesn’t make the bread taste sour. It adds a subtle tang, keeps the crumb soft, and balances the sweetness of the bananas in the best way.
It’s simple, it’s cozy, it smells absolutely ridiculous while it bakes, and it’s exactly the kind of recipe you’ll want to make when you have a few spotty bananas on the counter and a jar of sourdough discard hanging out in the fridge.
This Banana Sourdough Bread is also a quick bread, so there’s no kneading, rising, stretching, folding, or schedule-watching. Just mix, bake, cool, slice, and try not to eat half the loaf standing over the counter.
It’s worth keeping a sourdough starter on the counter for. I hope you’ll give it a try.
Why You’ll Love My Sourdough Banana Bread
This Sourdough Banana Bread recipe is a keeper for so many reasons:
- It uses sourdough discard. No waste, big flavor, happy baker.
- It’s quick and easy. No rise time, no mixer required, and no sourdough babysitting.
- It’s moist and tender. Ripe bananas, melted butter, and discard create a soft crumb that stays fresh for days.
- It’s sweet but balanced. The bananas and brown sugar bring cozy sweetness, while the sourdough discard keeps it from tasting flat.
- It’s customizable. Add walnuts, pecans, chocolate chips, cinnamon, or a little sprinkle of coarse sugar on top.
- It freezes beautifully. Perfect for breakfast, brunch, lunchbox treats, or emergency snack situations.
Ingredients For Sourdough Banana Bread
Here’s what you’ll need to make this easy Sourdough discard Banana Bread. The exact measurements are in the recipe card, but this gives you a quick peek at what each ingredient does and how you can swap things around.
- Sourdough discard: This is the star of the show. Unfed discard straight from the fridge works perfectly, so don’t worry about bringing it to room temperature or feeding it first. You can use active starter if that’s what you have, but discard is ideal for this recipe.
- Ripe bananas: The riper, the better. You want bananas that are deeply speckled, soft, and sweet. If your bananas are still yellow and firm, wait a day or two. For a shortcut, you can roast bananas in their peels until they darken and soften.
- Granulated sugar and brown sugar: The combination gives the bread sweetness and a little caramel-like warmth. You can use all brown sugar for a deeper flavor or all granulated sugar if that’s what you have.
- Melted butter: Butter gives the bread richness and that classic homemade banana bread flavor. Neutral oil can be used instead for an extra-moist loaf with a slightly softer crumb.
- Eggs: Eggs help bind everything together and give the bread structure. I haven’t tested this exact recipe egg-free, but flax eggs may work in a pinch with a slightly denser texture.
- Vanilla extract: A splash of vanilla makes the banana flavor taste warmer and sweeter. Almond extract can be used sparingly for a bakery-style twist.
- All-purpose flour: Regular all-purpose flour keeps the loaf soft and tender. You can swap in white whole wheat flour for part of the flour if you like a heartier loaf, but I wouldn’t replace all of it unless you’re okay with a denser bread.
- Baking soda and baking powder: These give the banana bread its lift. Since this is a quick bread, the sourdough discard is here for flavor and moisture, not rising power.
- Salt: A little salt balances the sweetness and makes all the banana, vanilla, and cinnamon flavors pop.
- Cinnamon: Optional, but highly recommended if you like that cozy banana bread flavor. You can also add a pinch of nutmeg, cardamom, or pumpkin pie spice.
- Walnuts or chocolate chips: Totally optional, totally delicious. Chopped pecans, mini chocolate chips, shredded coconut, or dried cherries would also be fun.
How to Make Sourdough Banana Bread
This Sourdough Banana Bread comes together like a classic quick bread, which means it’s low-effort and very forgiving.
- Prep your pan. Preheat the oven and grease or line a loaf pan with parchment paper. I like parchment because it makes lifting the bread out so easy.
- Mash the bananas. Use a fork to mash them until mostly smooth with a few small soft lumps. You want the mixture to look thick and glossy, not watery.
- Mix the wet ingredients. Stir the mashed bananas with the sugars, melted butter, eggs, vanilla, and sourdough discard. The mixture should look creamy, loose, and a little speckled from the bananas.
- Whisk the dry ingredients. In a separate bowl, whisk together the flour, baking soda, baking powder, salt, and cinnamon so the leavening is evenly distributed.
- Bring the batter together. Add the dry ingredients to the wet ingredients and stir gently. Stop as soon as the flour disappears. A few small lumps are fine. Overmixing is what makes banana bread tough.
- Add the fun stuff. Fold in walnuts, chocolate chips, or your favorite add-ins. The batter should be thick, soft, and scoopable.
- Bake until golden. Pour the batter into the prepared pan and smooth the top. Bake until the loaf is puffed, golden brown, and a toothpick inserted in the center comes out clean or with a few moist crumbs.
- Cool before slicing. Let the bread rest in the pan for a bit before moving it to a wire rack. This helps the loaf set so you get clean, tender slices instead of a steamy crumble situation.
Kellie’s Tips for the Best Sourdough Banana Bread
- Use ugly bananas. The soft, spotty, almost-too-far-gone bananas are the ones with the most sweetness and flavor.
- Don’t overmix. Once the flour goes in, stir gently and stop when the dry streaks disappear. This keeps the crumb tender.
- Cold discard is totally fine. You can use it straight from the fridge. This recipe is designed to be easy and fuss-free.
- Check the center. Banana bread can look done on top before the middle is fully baked. A toothpick should come out clean or with a few moist crumbs, not wet batter.
- Tent if needed. If the top is browning too quickly, loosely cover it with foil near the end of baking.
- Let it cool. Warm banana bread is dreamy, but slicing too soon can make the loaf fall apart. Give it a little time to settle.
- Make it your own. Add chocolate chips for dessert vibes, walnuts for crunch, or a sprinkle of cinnamon sugar on top for a little sparkle.
What to Serve with Sourdough Banana Bread
Sourdough Banana Bread is perfect all by itself, but it also plays well with a few cozy extras.
Try it with:
- Soft salted butter
- Cream cheese
- Honey butter
- Peanut butter or almond butter
- Berry Yogurt Parfait
- A drizzle of maple syrup
- Scrambled eggs for breakfast
- Cold Brew coffee, chai latte, or a cold glass of milk
It’s also fantastic toasted the next day. The edges get a little crisp, the inside stays soft, and it tastes like you put in way more effort than you did.
How to Store Leftovers
- Room Temperature: Wrap the cooled loaf tightly in plastic wrap or store slices in an airtight container. It will keep at room temperature for about 3 days.
- Refrigerator: For longer storage, refrigerate the bread for up to 5 to 6 days. The fridge can dry out quick breads a little, so keep it well wrapped.
- Freezer: This Banana Sourdough Bread freezes beautifully. Wrap the whole loaf or individual slices tightly, then place in a freezer-safe bag or container. Freeze for up to 3 months.
- To Thaw: Thaw slices at room temperature or warm them gently in the microwave or toaster oven. A little butter on a warm slice is never a bad idea.
Sourdough Banana Bread Variations
- Chocolate Chip Sourdough Banana Bread: Fold chocolate chips into the batter for a sweeter, more dessert-like loaf.
- Walnut Sourdough Banana Bread: Add chopped walnuts for crunch and classic banana bread flavor.
- Cinnamon Sugar Sourdough Banana Bread: Sprinkle cinnamon sugar over the top before baking for a lightly crisp, sweet crust.
- Peanut Butter Banana Sourdough Bread: Swirl a few spoonfuls of peanut butter into the batter before baking.
- Coconut Banana Sourdough Bread: Fold in shredded coconut for a slightly tropical twist.
More Easy Sourdough Discard Recipes
If you’re building out a sourdough discard collection, this section is a great place for internal links. A few ideas to include:
Sourdough discard is one of my favorite little kitchen bonuses. It adds flavor, helps reduce waste, and makes simple recipes feel a little more special without making them complicated.
Sourdough Banana Bread Recipe
Equipment
- hand mixer or stand mixer
- mixing bowls
- measuring cup
- measuring spoons
- spatula
- whisk
- 9 inch loaf pan
Ingredients
- 1 cup sourdough discard, unfed and straight from the fridge is fine
- 3 ripe bananas, mashed, about 1 to 1 1/4 cups
- 1/2 cup granulated sugar
- 1/4 cup brown sugar
- 1/2 cup melted butter, or neutral oil
- 2 large eggs
- 1 teaspoon vanilla extract
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 1 teaspoon cinnamon, optional
- 1/2 cup chopped walnuts or chocolate chips, optional
Instructions
- Preheat the oven to 350°F. Grease or line a 9×5-inch loaf pan with parchment paper.
- In a large bowl, whisk together the mashed bananas, granulated sugar, brown sugar, melted butter, eggs, vanilla, and sourdough discard until well combined.
- In a separate bowl, whisk together the flour, baking soda, baking powder, salt, and cinnamon, if using.
- Add the dry ingredients to the wet ingredients and stir just until no dry streaks remain. Do not overmix.
- Fold in the chopped walnuts or chocolate chips, if using.
- Pour the batter into the prepared loaf pan and smooth the top.
- Bake for 50 to 60 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
- Cool in the pan for 10 to 15 minutes, then transfer to a wire rack to cool before slicing.
Notes
- Very ripe bananas will give this bread the best flavor, sweetness, and moisture.
- Cold sourdough discard works well in this recipe. Since this is a quick bread, the baking soda and baking powder provide the rise.
- Do not overmix the batter once the dry ingredients are added. Stir just until the flour disappears to keep the bread soft and tender.
- If the top of the bread is browning too quickly before the center is done, loosely tent it with foil during the last 10 to 15 minutes of baking.
- Let the bread cool before slicing so it has time to set up properly.
- Store leftovers tightly wrapped at room temperature for up to 3 days, in the refrigerator for up to 5 to 6 days, or freeze for up to 3 months.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Yes! Active starter works in this recipe, but sourdough discard is perfect because this is a quick bread. The baking soda and baking powder provide the rise, while the discard adds flavor and moisture.
Not really. It has a subtle tang that balances the sweetness of the bananas and sugar, but it still tastes like classic banana bread.
Yes. Thaw the bananas first, then drain off any excess liquid before mashing. Frozen bananas can be a little wetter, so this helps keep the bread from getting gummy.
It may have needed a little more time in the oven, or the batter may have been overmixed. Make sure the center is fully baked before removing the loaf from the oven.
Absolutely. Walnuts, pecans, chocolate chips, mini chocolate chips, or even a mix of nuts and chocolate are all delicious in this Sourdough Banana Bread recipe.
Yes, you can double it and bake in two loaf pans. Avoid overfilling one pan because the center may not bake evenly.
This Sourdough Banana Bread is simple, sweet, lightly tangy, and one of the easiest ways to use up sourdough discard. It has that classic banana bread comfort with a little extra depth from the starter, and it’s the kind of recipe that feels just as perfect for breakfast as it does for an afternoon snack.
Make it plain, add nuts, toss in chocolate chips, or warm up a slice with butter and call it dessert. However you serve it, this is one of those cozy, reliable bakes you’ll want to keep on repeat.
