These Strawberry Sourdough Blondies are one of my favorite quick and easy ways to use up sourdough discard. Packed with freeze-dried strawberries and white chocolate chips, they’re soft, chewy, buttery, and perfect for spring.
Preheat oven to 350°F. Line an 8-inch square pan with parchment paper or generously grease with butter, oil, or cooking spray. Set aside.
In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
2 cups (240 grams) all-purpose flour, ½ teaspoon baking powder, ½ teaspoon Diamond Crystal Kosher Salt
In a small saucepan over medium-low heat, brown the butter until the milk solids are golden brown and the butter smells nutty. Transfer to a large mixing bowl.
½ cup (113 grams; 1 stick) unsalted butter
Add the brown sugar to the browned butter and whisk until smooth. Whisk in the egg until fully combined, then add the sourdough discard and vanilla extract.
1 cup (200 grams) brown sugar, 1 large egg, ½ cup (100 grams) sourdough starter discard, 2 teaspoons vanilla extract
Add the dry ingredients to the wet ingredients and fold together just until no dry flour remains. Fold in the white chocolate chips and freeze-dried strawberries. The batter will be thick.
1 cup (170 grams) white chocolate chips, ½ cup (12 grams) freeze-dried strawberries
Spread the batter evenly into the prepared pan. Bake for 25–30 minutes, or until a toothpick inserted into the center comes out clean.
Let the blondies cool in the pan for about 1 hour before slicing into 16 squares.
Notes
Storage: Store blondies in an airtight container at room temperature for up to 4 days or freeze for up to 3 months.