I used my extra sourdough starter in banana bread and ended up with slices that are tangy, tender, and so moist they vanish from the plate.

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I’m obsessed with sourdough discard banana bread and I mean obsessed. The tang from the sourdough starter discard cuts through the sugar and makes every bite interesting.

I love when molten semisweet chocolate chips streak the crumb so you get that sweet-salty tug and little pockets of goo. Not cloying, not shy.

Dense but tender, with edges that flirt with crispness and a center that wants to fall apart on your fork. I bake this when I need something honest and reckless at once.

Stubbornly simple. Ridiculously snackable.

Go ahead, steal a slice while it’s still warm right this minute.

Ingredients

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Sourdough discard: tangy moisture, uses up starter so you won’t waste it.
Very ripe bananas: pure banana punch, super sweet and ultra moist.
Melted butter or oil: richness and tender crumb, makes it feel indulgent.
Granulated sugar: bright sweetness and slight crunch on the crust.
Brown sugar: molassesy depth and extra chewiness, it’s cozy.
Eggs: bind everything together and give a nice lift.
Vanilla extract: warm background note that makes it taste homemade.
All-purpose flour: the loaf’s structure, keeps it from collapsing.
Baking soda: quick rise and lighter texture, reacts with the discard.
Fine salt: balances sweetness and sharpens flavors quietly.
Ground cinnamon: warm spice hit, optional but really comforting.
Chocolate chips: melty pockets of sweet, makes each bite fun.
Chopped nuts: crunch and nuttiness, great contrast if you like texture.

Ingredient Quantities

1 cup active sourdough starter discard (unfed or recently fed, room temp)

1 cup mashed very ripe bananas (about 2 to 3 medium bananas)

1/3 cup melted unsalted butter (or neutral oil)

3/4 cup granulated sugar

1/4 cup packed brown sugar

2 large eggs, lightly beaten

1 teaspoon pure vanilla extract

1 1/2 cups all purpose flour, spooned and leveled

1 teaspoon baking soda

1/2 teaspoon fine salt

1/2 teaspoon ground cinnamon (optional but nice)

1 cup semisweet chocolate chips (plus a few extra for sprinkling)

1/2 cup chopped walnuts or pecans (optional)

How to Make this

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1. Preheat oven to 350 F and grease a 9×5 inch loaf pan or line it with parchment, pressing the parchment up the sides so the bread pulls out easy.

2. In a large bowl stir together 1 cup sourdough starter discard, 1 cup mashed very ripe bananas, and 1/3 cup melted butter (or oil) until mostly smooth.

3. Add 3/4 cup granulated sugar, 1/4 cup packed brown sugar, 2 lightly beaten eggs, and 1 teaspoon vanilla. Mix until combined, some small lumps from the banana are fine.

4. In a separate bowl whisk 1 1/2 cups all purpose flour, 1 teaspoon baking soda, 1/2 teaspoon fine salt, and 1/2 teaspoon ground cinnamon if using.

5. Gently fold the dry mix into the wet mixture until just combined. Don’t overmix or you’ll get dense bread.

6. Fold in 1 cup semisweet chocolate chips and 1/2 cup chopped walnuts or pecans if using. Save a few chocolate chips to sprinkle on top.

7. Scrape the batter into the prepared loaf pan, smooth the top and sprinkle the extra chips on for a pretty finish.

8. Bake at 350 F for about 50 to 65 minutes. Start checking at 50 minutes by inserting a toothpick in the center. It should come out with a few moist crumbs but not raw batter.

9. Let the loaf cool in the pan on a wire rack for 10 to 15 minutes, then lift it out using the parchment and cool completely before slicing. Store wrapped at room temp up to 2 days or in the fridge for up to a week. If you want softer slices, warm briefly before serving.

Equipment Needed

1. 9×5 inch loaf pan (lined with parchment if you want the bread to lift out easy)
2. Parchment paper (or nonstick spray)
3. Large mixing bowl
4. Medium mixing bowl for dry ingredients
5. Measuring cups and spoons
6. Rubber spatula for folding and scraping the bowl
7. Whisk (for dry ingredients) and a fork or potato masher to mash bananas
8. Toothpick or cake tester to check doneness
9. Wire cooling rack

FAQ

Q: Can I use any sourdough discard or does it have to be active?

A: You can use unfed discard or recently fed starter, room temp is fine. It adds flavor and moisture, it does not need to be bubbling. If your discard is super sour or very old, taste it first and use less or refresh it if it tastes off.

Q: My bread turned out dense, what went wrong?

A: Dense usually means either the bananas or the starter weighed things down, or you overmixed once the flour was added. Make sure bananas are very ripe but not watery, measure flour by spooning and leveling, and fold until just combined. Also check your baking soda is fresh.

Q: Can I swap butter for oil or make it dairy free?

A: Yes. Use a neutral oil like vegetable or canola in the same amount for dairy free. Butter gives flavor and a slight crisp top, oil makes it moister. Both work fine.

Q: My chocolate chips sank to the bottom. How do I stop that?

A: Toss chips in a tablespoon of flour before folding them into the batter. That helps suspend them. Also avoid a runny batter and don't overmix.

Q: How should I store the banana bread and how long is it good for?

A: Cool completely, wrap in plastic or keep in an airtight container at room temp for 2 to 3 days. Refrigerate up to a week or freeze slices for 2 to 3 months. Warm slices in the toaster or microwave for best taste.

Q: Can I make this into muffins or double the recipe?

A: Yes to both. For muffins, bake at the same temp but 16 to 20 minutes or until a toothpick comes out clean. To double, use a larger pan or two loaf pans and adjust bake time – two loaves usually need 50 to 65 minutes, check often.

Sourdough Discard Banana Bread With Chocolate Chips Recipe Substitutions and Variations

Sourdough starter discard: use 1 cup plain yogurt or buttermilk instead. It gives the same tang and moisture, if using yogurt thin it with a tbsp or two of milk, and you might add 1/2 tsp baking powder if you worry about lift.
Melted unsalted butter (or neutral oil): swap equal parts with vegetable oil, melted coconut oil, or 1/3 cup applesauce for a lower fat option. Applesauce will make the crumb a bit denser and moister, but works great.
Granulated sugar: replace with coconut sugar or raw cane sugar 1:1, or use 3/4 cup maple syrup or honey but reduce other liquids by about 3 tbsp and lower oven temp by 25 degrees to prevent overbrowning.
All purpose flour: sub with whole wheat pastry flour 1:1 for nuttier flavor and slightly denser loaf, or use a 1:1 gluten free flour blend with 1/4 tsp xanthan gum added for structure.

Pro Tips

1. Let the bananas be really ripe, like brown-speckled or even mostly brown. They mash and sweeten better, so you can cut a bit of added sugar without losing flavor. Also, warm bananas mash easier if you nuke them 10–15 seconds.

2. If your discard is quite tangy or cold, give it 30 minutes on the counter so it warms up. Cold starter can tighten the batter and make the loaf denser. Room temp ingredients mix more smoothly.

3. Fold the flour in gently and stop when you still see streaks of flour. Overmixing will make the bread chewy and tough. Scrape down the bowl and use a spatula with big, slow scoops, not fast whisking.

4. To check doneness without drying the loaf, tent loosely with foil after 40 minutes if the top is browning fast. Then test with a toothpick in the center at 50 minutes; if it has a few moist crumbs it’s perfect. Let it cool at least 30 minutes before slicing so the crumb sets.

Sourdough Discard Banana Bread With Chocolate Chips Recipe

Recipe by Bob Jones

0.0 from 0 votes

I used my extra sourdough starter in banana bread and ended up with slices that are tangy, tender, and so moist they vanish from the plate.

Servings

servings

Calories

330

kcal

Equipment: 1. 9×5 inch loaf pan (lined with parchment if you want the bread to lift out easy)
2. Parchment paper (or nonstick spray)
3. Large mixing bowl
4. Medium mixing bowl for dry ingredients
5. Measuring cups and spoons
6. Rubber spatula for folding and scraping the bowl
7. Whisk (for dry ingredients) and a fork or potato masher to mash bananas
8. Toothpick or cake tester to check doneness
9. Wire cooling rack

Ingredients

1 cup active sourdough starter discard (unfed or recently fed, room temp)
1 cup mashed very ripe bananas (about 2 to 3 medium bananas)
1/3 cup melted unsalted butter (or neutral oil)
3/4 cup granulated sugar
1/4 cup packed brown sugar
2 large eggs, lightly beaten
1 teaspoon pure vanilla extract
1 1/2 cups all purpose flour, spooned and leveled
1 teaspoon baking soda
1/2 teaspoon fine salt
1/2 teaspoon ground cinnamon (optional but nice)
1 cup semisweet chocolate chips (plus a few extra for sprinkling)
1/2 cup chopped walnuts or pecans (optional)

Directions

Preheat oven to 350 F and grease a 9×5 inch loaf pan or line it with parchment, pressing the parchment up the sides so the bread pulls out easy.
In a large bowl stir together 1 cup sourdough starter discard, 1 cup mashed very ripe bananas, and 1/3 cup melted butter (or oil) until mostly smooth.
Add 3/4 cup granulated sugar, 1/4 cup packed brown sugar, 2 lightly beaten eggs, and 1 teaspoon vanilla. Mix until combined, some small lumps from the banana are fine.
In a separate bowl whisk 1 1/2 cups all purpose flour, 1 teaspoon baking soda, 1/2 teaspoon fine salt, and 1/2 teaspoon ground cinnamon if using.
Gently fold the dry mix into the wet mixture until just combined. Don’t overmix or you'll get dense bread.
Fold in 1 cup semisweet chocolate chips and 1/2 cup chopped walnuts or pecans if using. Save a few chocolate chips to sprinkle on top.
Scrape the batter into the prepared loaf pan, smooth the top and sprinkle the extra chips on for a pretty finish.
Bake at 350 F for about 50 to 65 minutes. Start checking at 50 minutes by inserting a toothpick in the center. It should come out with a few moist crumbs but not raw batter.
Let the loaf cool in the pan on a wire rack for 10 to 15 minutes, then lift it out using the parchment and cool completely before slicing. Store wrapped at room temp up to 2 days or in the fridge for up to a week. If you want softer slices, warm briefly before serving.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.