Brown Butter Blueberry Muffins (Print Version)

# Ingredients:

→ For the muffins

01 - 113 grams unsalted butter
02 - 254 grams all-purpose flour
03 - 100 grams light brown sugar
04 - 50 grams granulated sugar
05 - ½ teaspoon fine salt
06 - 1 tablespoon baking powder
07 - 178 grams buttermilk, at room temperature
08 - 1 large egg, at room temperature
09 - 1 teaspoon vanilla extract
10 - 210 grams blueberries, fresh or frozen (do not thaw)

→ For the crumb topping

11 - 50 grams granulated sugar
12 - 24 grams all-purpose flour
13 - ½ teaspoon ground cinnamon
14 - 29 grams unsalted butter, melted

# Instructions:

01 - Preheat the oven to 400°F. Line a standard muffin tin with paper liners.
02 - In a small stainless steel skillet set over medium heat, melt the butter. Swirl the pan occasionally and continue cooking until the butter becomes foamy and makes crackling noises. Once the crackling stops, swirl until the butter has a nutty aroma and amber-colored bits form at the bottom, about 2 to 3 minutes. Remove from heat and pour into a medium mixing bowl, ensuring all browned bits are included. Let cool.
03 - In a small bowl, mix the granulated sugar, flour, and cinnamon. Add the melted butter and mix with a fork until the texture resembles wet sand.
04 - In a large bowl, whisk together the flour, sugars, salt, and baking powder. In a separate medium bowl, whisk together the cooled browned butter, buttermilk, egg, and vanilla extract. Combine the wet ingredients with the dry ingredients using a rubber spatula, mixing until just combined. Gently fold in the blueberries. Do not overmix. The batter will be thick.
05 - Divide the batter evenly among the muffin tin cups. Sprinkle the crumb topping over the batter using your fingertips. Bake for 20 to 22 minutes or until golden brown and a toothpick inserted into the center comes out clean.
06 - Transfer the muffin tin to a wire rack to cool for 5 minutes. Remove the muffins from the tin and cool completely on the rack. Serve immediately or store.

# Notes:

01 - Reheat muffins in the microwave for 15 seconds if desired. Store at room temperature in an airtight container for up to 3 days or freeze for up to 3 months.