These Sourdough Blueberry Muffins are soft, fluffy, and packed with juicy blueberries. The sourdough discard adds subtle tang and tenderness, while the high-heat baking method creates tall bakery-style muffin tops.
Prep the oven: Preheat oven to 400°F (204°C). Line a muffin tin with paper liners.
Mix dry ingredients: In a large bowl whisk together flour, sugar, baking powder, baking soda, and salt.
Mix wet ingredients: In another bowl whisk melted butter, sourdough discard, milk, egg, and vanilla until smooth.
Combine batter: Pour wet ingredients into the dry ingredients and gently mix until just combined.
Fold in blueberries: Toss blueberries with a teaspoon of flour and gently fold them into the batter.
Fill muffin cups: Divide batter between 12 muffin cups, filling all the way to the top.
Add crumb topping (optional): Mix crumb topping ingredients and sprinkle over muffins.
Bake: Bake at 400°F for 5 minutes, then reduce temperature to 350°F and bake another 15 minutes, until golden and a toothpick comes out clean. Do not open the oven during the temperature change.
Cool: Let muffins cool in the pan for 5 minutes before transferring to a rack.
Notes
Storage:Room Temperature: Store muffins in an airtight container for up to 2 days.Refrigerator: Refrigerate for up to 5 days. Warm slightly before serving for the best texture.Freezer: Freeze muffins in a sealed container for up to 2 months. Thaw at room temperature or warm briefly in the microwave.