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Overhead picture of sourdough discard banana bread with streusel topping.

Sourdough Banana Bread

Audrey
My Sourdough Banana Bread combines the tangy richness of sourdough with the sweet, comforting flavor of ripe bananas, creating a moist, flavorful loaf. Perfect for any occasion, its golden crust and tender crumb make it a simple yet irresistible treat.
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Prep Time 10 minutes
Cook Time 45 minutes
Total Time 55 minutes
Course Dessert
Cuisine American
Servings 10 slices
Calories 373 kcal

Equipment

  • Kitchen scale with a paddle attachment (please weigh your ingredients for best results)
  • Stand Mixer (or large bowl)
  • Loaf Pan (I used a 1.5 pound loaf pan)
  • Parchment Paper
  • Fork or other tool for mashing bananas
  • Small bowl for mixing the streusel

Ingredients
  

Sourdough Banana Bread:

  • 2 ¼ cups flour 270g
  • 2 teaspoon baking powder
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 1 teaspoon cinnamon
  • ¼ teaspoon nutmeg
  • ¼ teaspoon cardamom
  • 3-4 ripe bananas mashed about 1.5 cups
  • ⅓ cup discard 100g
  • 6 tablespoon melted butter unsalted
  • 2 teaspoon vanilla
  • 1 egg
  • ⅔ cup packed brown sugar 147g

Streusel Topping:

  • ½ cup flour 60g
  • ½ cup white sugar 100g
  • 4 tablespoon melted butter unsalted
  • ½ teaspoon cinnamon

Instructions
 

  • Preheat your oven to 350°F; in a small bowl, mix your dry ingredients.
    2 ¼ cups flour , 2 teaspoon baking powder, 1 teaspoon baking soda, ½ teaspoon salt, 1 teaspoon cinnamon, ¼ teaspoon nutmeg, ¼ teaspoon cardamom
  • In a medium bowl, mash bananas thoroughly and add in the wet ingredients. Mix until just combined.
    3-4 ripe bananas mashed , ⅓ cup discard , 6 tablespoon melted butter unsalted, 2 teaspoon vanilla, 1 egg, ⅔ cup packed brown sugar
  • Add dry ingredients to the wet ingredients and mix until fully incorporated. Be careful not to over-mix because over-mixing will impact the rise of the bread.
  • Pour all of the batter into a loaf pan lined with parchment paper.
  • Mix the streusel topping ingredients and generously top the batter. Use all of it! Even if it seems like too much. Just trust me-- it is the perfect amount!
    ½ cup flour , ½ cup white sugar , 4 tablespoon melted butter , ½ teaspoon cinnamon
  • Bake for 40-45 mins at 350F or until you can stick a toothpick in it and it comes out with just a few crumbs. When you wiggle the pan the banana bread shouldn't jiggle. Allow to cool before serving for best results. Enjoy!

Nutrition

Serving: 1gCalories: 373kcalCarbohydrates: 55gProtein: 5gFat: 12gSaturated Fat: 7gPolyunsaturated Fat: 0.2gMonounsaturated Fat: 0.2gTrans Fat: 0.002gCholesterol: 29mgSodium: 323mgPotassium: 46mgFiber: 1gSugar: 24gVitamin A: 25IUVitamin C: 0.02mgCalcium: 58mgIron: 2mg
Keyword banana
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