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Moist & Easy Sourdough Banana Bread Recipe

August 15, 2025

15 minutes

easy

10–12 slices

The Best Sourdough Banana Bread Ever 🍌🍞

Rich, moist sourdough banana bread with deep flavor, perfect for using up starter discard. Simple, cozy, and irresistibly good.

This is hands-down the best sourdough banana bread you’ll ever bake — rich, moist, and bursting with sweet banana flavor. Perfect for using up sourdough starter discard, this quick bread has a tender crumb, a hint of tang, and a golden crust that’s irresistibly good. Whether you enjoy it warm with butter, as an afternoon snack, or as a cozy breakfast with coffee, it’s the kind of recipe you’ll come back to again and again. Easy to make, freezer-friendly, and guaranteed to make your kitchen smell amazing! This will be your new go-to banana bread.

💚 Why You’ll Love This Banana Bread

🍌 Sweet bananas + 🥖 tangy sourdough = the coziest loaf ever.
Moist, rich, easy to make — and perfect for using that starter discard. 💛

Buttered slices of sourdough banana bread, cut in half to show a moist crumb, ready to eat
☕️🍞 A slice, a smear of butter, and a latte hug. 💛

🛒 Shop My Kitchen Favorites!

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Looking for more comforting, flavor-packed meals? Check out our [other recipes here]!

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Ingredients

Adjust Servings
3 medium (350g) very ripe bananas, mashed
8 tbsp (113g) unsalted butter, melted
1 cup (200g) dark brown sugar (light brown or white also work)
2 large eggs
1 tsp (5g) vanilla extract
3 tbsp (45g) sour cream
1/2 cup (125g) sourdough starter (active or discard)
2 cups (180g) all-purpose flour
½ tsp (5g) baking soda
2 teaspoons baking powder
1 tsp fine sea salt
pinch turbinado sugar for topping

Nutritional Information

215 Calories
34g Carbs
3g Protein
8g Fat
200g Sodium
1g Fiber
17g Sugar

Directions

1.

Prep & Preheat

Preheat oven to 350°F (175°C). Grease a 9×5-inch loaf pan or line with parchment paper.
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2.

Mix Wet Ingredients

In a large mixing bowl, whisk together mashed bananas, melted butter, brown sugar, egg, and vanilla until smooth.
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3.

Add Starter

Stir in the sourdough starter until fully incorporated.
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4.

Combine Dry Ingredients

In a separate bowl, whisk together flour, baking soda, and salt. Bring It Together – Gently fold dry ingredients into the wet mixture until just combined. Do not overmix.
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5.

Bake

Pour batter into prepared loaf pan. Bake 50–60 minutes, or until a toothpick inserted in the center comes out clean.
Chewy middle, crisp edge, melty chocolate—just cookie close-ups you can almost hear. 🍪✨ Made with sourdough discard + salted butter for next-level flavor and crunch. Full recipe 👉 https://sourdoughafterglow.com/recipe/salted-butter-sourdough-discard-chocolate-chip-cookies-chewy-gooey/ Shop my tools 👉 https://www.amazon.com/shop/bigstarproductiongroup Save for cravings + share with a cookie friend! #SourdoughCookies #SourdoughDiscard #ChocolateChipCookies #Shorts
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6.

Cool & Slice

Buttered slices of sourdough banana bread, cut in half to show a moist crumb, ready to eat
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Notes

This loaf brings together overripe bananas, a kiss of sourdough tang, and that tender, rich crumb we all crave. It’s an easy, mix-by-hand quick bread that makes your kitchen smell like a hug. Serve warm with butter, share a slice with a friend, and let the afterglow do its thing.
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