Sourdough Discard Banana Nut (Print Version)

Moist loaf featuring ripe bananas, sourdough discard, toasted walnuts, and a sweet brown sugar crust.

# Ingredient List:

→ Wet Ingredients

01 - 1 cup ripe bananas, mashed (approximately 2 large bananas)
02 - 1/2 cup sourdough discard, unfed at room temperature
03 - 1/2 cup unsalted butter, melted and cooled
04 - 2 large eggs, at room temperature
05 - 1/2 cup whole milk, at room temperature
06 - 1 teaspoon vanilla extract

→ Dry Ingredients

07 - 1 3/4 cups all-purpose flour
08 - 3/4 cup granulated sugar
09 - 1 teaspoon baking soda
10 - 1/2 teaspoon baking powder
11 - 1/2 teaspoon salt
12 - 1 teaspoon ground cinnamon

→ Add-ins

13 - 3/4 cup walnuts, chopped and lightly toasted

→ Brown Sugar Crust

14 - 1/4 cup light brown sugar, packed
15 - 1 tablespoon unsalted butter, melted
16 - 1/2 teaspoon ground cinnamon

# Recipe Steps:

01 - Preheat oven to 350°F. Line a 9x5-inch loaf pan with parchment paper or grease thoroughly.
02 - In a large mixing bowl, whisk together mashed bananas, sourdough discard, melted butter, eggs, milk, and vanilla extract until smooth and well blended.
03 - In a separate bowl, whisk together flour, granulated sugar, baking soda, baking powder, salt, and ground cinnamon.
04 - Pour dry ingredients into wet mixture and stir gently with a spatula until just combined. Do not overmix to maintain tender crumb structure.
05 - Gently fold toasted walnuts into batter using a spatula until evenly distributed.
06 - Pour batter into prepared loaf pan and smooth the top surface with a spatula.
07 - In a small bowl, mix light brown sugar, melted butter, and cinnamon until combined. Sprinkle mixture evenly over batter surface.
08 - Bake for 50 to 60 minutes, or until a toothpick inserted into the center emerges clean or with only a few moist crumbs.
09 - Allow bread to cool in pan for 15 minutes, then transfer to wire cooling rack. Cool completely before slicing.

# Expert Suggestions:

01 -
  • Your sourdough discard finally has a purpose beyond guilt, turning what feels like waste into genuine depth of flavor.
  • The brown sugar crust gets crispy and caramelized while the inside stays impossibly moist, like you've somehow solved the ancient quick bread paradox.
  • It comes together in under 20 minutes of actual work, making it perfect for those mornings when you want homemade but not complicated.
02 -
  • Overmixing the batter is the sneaky killer here—it develops gluten and makes the loaf tough and bouncy rather than tender and moist, so stir just until you see no flour.
  • The toasted walnuts matter more than you'd think; raw ones taste bitter and woody, but toasted ones taste like breakfast.
03 -
  • Toasting your own walnuts in a dry skillet for just two minutes changes everything—they go from tasting like an ingredient to tasting intentional, and the smell tells you exactly when they're ready.
  • Save a slice before you cut into the loaf; by the next morning it will have settled and the flavors will have deepened, and you'll understand why this became your go-to recipe.
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