Sourdough Discard Banana Muffins (Printable Version)

Tender banana muffins with sourdough discard and a crunchy cinnamon streusel topping.

# Ingredient List:

→ Muffins

01 - 1 cup mashed ripe bananas (about 2 large)
02 - 1/2 cup sourdough discard (unfed)
03 - 1/2 cup granulated sugar
04 - 1/4 cup unsalted butter, melted
05 - 1/4 cup vegetable oil
06 - 2 large eggs
07 - 1 teaspoon vanilla extract
08 - 1 1/2 cups all-purpose flour
09 - 1 teaspoon baking powder
10 - 1/2 teaspoon baking soda
11 - 1/2 teaspoon salt
12 - 1/2 teaspoon ground cinnamon

→ Cinnamon Streusel

13 - 1/3 cup light brown sugar, packed
14 - 1/4 cup all-purpose flour
15 - 1/2 teaspoon ground cinnamon
16 - 2 tablespoons unsalted butter, melted
17 - Pinch of salt

# Directions:

01 - Preheat oven to 350°F. Line a 12-cup muffin tin with paper liners or lightly grease with nonstick spray.
02 - In a large mixing bowl, whisk together mashed bananas, sourdough discard, sugar, melted butter, vegetable oil, eggs, and vanilla extract until well combined.
03 - In a separate bowl, whisk together all-purpose flour, baking powder, baking soda, salt, and ground cinnamon.
04 - Gently fold the dry ingredient mixture into the wet mixture, stirring until just combined with no visible dry spots. Avoid overmixing to maintain muffin texture.
05 - Divide batter evenly among the prepared muffin cups, filling each approximately 3/4 full.
06 - In a small bowl, combine light brown sugar, all-purpose flour, ground cinnamon, melted butter, and a pinch of salt. Mix until the mixture becomes crumbly.
07 - Sprinkle the cinnamon streusel mixture evenly over the unbaked batter in each muffin cup.
08 - Bake for 20 to 22 minutes, or until a wooden toothpick inserted into the center of a muffin comes out clean.
09 - Allow muffins to cool in the tin for 5 minutes. Transfer to a wire rack to cool completely before serving.

# Expert Advice:

01 -
  • Uses sourdough discard to reduce waste and add subtle tangy depth
  • Perfectly moist and tender crumb from ripe bananas and the ideal fat balance
  • Crunchy cinnamon streusel topping adds irresistible texture and sweetness
  • Easy to make with simple pantry ingredients
  • Freezer-friendly for meal prep or make-ahead breakfasts
02 -
  • Don't skip the streusel—it adds essential texture and sweetness contrast
  • Use room temperature eggs for better batter emulsion and even baking
  • Fill muffin cups only 3/4 full to prevent overflow and ensure even doming
  • Test doneness with a toothpick; it should come out clean or with just a few moist crumbs
  • Let muffins cool slightly in the tin to set, then transfer to prevent sogginess
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