These Brown Butter Strawberry Muffins combine fresh strawberries with the rich, nutty flavor of brown butter for a great grab-and-go breakfast or snack.
Place the butter in a medium saucepan or skillet. Cook over medium heat until the butter melts and begins to foam.
Continue cooking, stirring occasionally, until brown specks begin to form at the bottom of the pan and the butter has a nutty aroma. Set aside to cool slightly.
Preheat oven to 400°F (200°C). Line or grease 12 standard muffin cups.
Whisk together the flour, baking soda, baking powder, and salt. Stir in the sugar and brown sugar. Make a well in the center of the mixture.
Place the eggs in a small bowl and beat lightly. Add the cooled butter, sour cream, and vanilla, and stir to combine.
Add the egg mixture to the well in the flour mixture. Stir just until combined.
Stir in the chopped strawberries.
Transfer the batter to the prepared pan, using about 3 tablespoons of batter to fill each cup about 3/4 full. (I like to use a scoop for easy portioning.)
Top each muffin with a strawberry slice and sprinkle with a pinch of sanding sugar or turbinado sugar.
Bake 18 to 22 minutes, or until a pick inserted into the center of a muffin comes out clean. Cool in the pan for 10 minutes before transferring to a wire rack to cool completely.