These sourdough blueberry muffins get their tender crumb and layered flavor from sourdough discard, which adds natural acidity and moisture. A crunchy cinnamon streusel tops them, producing golden, bakery-style muffins with a crisp finish.
Here’s Why This Sourdough Blueberry Muffin Recipe Works
Smart use of discard: Sourdough discard contributes a gentle tang and depth without overpowering the muffin’s sweetness.
Tender, moist crumb: The acidity and moisture in the discard keep the crumb soft and delicate while maintaining balance.
Streusel for texture: A simple cinnamon-sugar streusel bakes up crisp and golden, adding contrast to the soft muffin interior.
Even berry distribution: A thick, structured batter helps prevent blueberries from sinking, so each bite has berries throughout.
If you have extra discard, these muffins are an excellent alternative to pancakes—rich in flavor and simple to make.
Recipe Tips
Start hot for a good dome: Begin baking at a higher temperature for a few minutes to encourage a domed top, then lower the oven temperature for the remainder of the bake.
Use room-temperature ingredients: Cold butter or eggs can make the batter curdle or bake unevenly. Bring ingredients to room temperature for a smoother texture.
Mix gently: After adding the flour, fold just until combined. A few lumps are fine—overmixing yields tough muffins.
Overnight rest (optional): Refrigerating the batter for up to 12 hours deepens flavor and adds a subtle tang.
Flour large or frozen berries: Tossing oversized or frozen blueberries lightly in flour helps keep them suspended in the batter.
Sourdough Discard Blueberry Muffins
These are some of the best blueberry muffins you can make: moist and tender with a subtle sourdough tang and a crunchy streusel. They’re easy to prepare and perfect for breakfast, snacks, or brunch. Best of all, they put extra discard to good use.
Sourdough Blueberry Muffins
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Ingredients
Streusel topping
- ½ cup brown sugar (about 105 g)
- ¾ cup all-purpose flour (about 120 g)
- 6 tablespoons butter, softened
- 2 teaspoons ground cinnamon
Muffin Batter
- 8 tablespoons butter, softened (about 113 g)
- 1 cup granulated sugar (about 200 g)
- 2 large eggs, room temperature
- ½ cup sourdough discard (about 113 g)
- ¼ cup sour cream (about 60 g)
- Zest of 1 lemon
- 1½ teaspoons vanilla extract
- 1½ cups fresh or frozen blueberries
- 1¾ cups all-purpose flour (about 210 g)
- 1½ teaspoons baking powder
- 1 teaspoon baking soda
- ¾ teaspoon salt
Instructions
- Preheat the oven to 425°F (220°C). Line muffin pans with 12 to 15 liners. You will reduce the temperature after the first five minutes of baking.
Streusel topping
- Combine the streusel ingredients in a bowl and cut or blend with a fork or pastry cutter until the mixture resembles coarse sand. Set aside. (This amount covers about 15 muffins; you may have a little extra for 12 large muffins.)
Muffin Batter
- In a mixing bowl, cream the butter and sugar with an electric mixer on medium-high until pale and fluffy, about 4–5 minutes. Add the eggs one at a time, mixing well and scraping the bowl after each addition.
- Stir in the sourdough discard, sour cream, lemon zest, and vanilla until combined.
- Sift the flour, baking powder, baking soda, and salt over the wet ingredients. Fold gently with a spatula just until no dry streaks remain—do not overmix.
- Fold in the blueberries by hand, taking care not to break them up. The batter should be thick.
- Scoop the batter into the prepared pans (an ice-cream scoop works well). Top each muffin with streusel. Bake 5 minutes at 425°F, then lower the oven to 350°F (175°C) and bake another 12–15 minutes, or until a toothpick inserted in the center comes out clean. Cool on a wire rack.
Notes
Make-ahead: Mix the batter and refrigerate for 8–12 hours to develop a slightly tangier flavor through extended fermentation.
Room-temperature ingredients: If eggs are cold, place them in warm water for about 5 minutes to bring them to temperature quickly.
Sour cream substitute: Full-fat sour cream yields the most tender result, but plain Greek yogurt will also work.
Reduce sugar: For a less sweet muffin, lower the sugar to ¾ cup without affecting texture.
Prevent sinking berries: If using large or frozen blueberries, toss them lightly with a tablespoon of flour before folding in to keep them from sinking.
Nutrition
Nutrition information is automatically calculated and should be used as an approximation.
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