Makes 1 dozen
Ingredients
For the streusel:
3/4 cup (92g) all-purpose flour
1/3 cup (66g) light brown sugar, packed
1 tablespoon (12g) granulated sugar
1 teaspoon cinnamon
1/8 teaspoon salt
1/4 cup (57g) unsalted butter, melted
For the muffins:
1/2 cup (115g) unsalted butter, softened
3/4 cup (150g) granulated sugar
2 large eggs, at room temperature
1/2 cup (120g) sour cream
1/4 cup (60ml) milk
1 teaspoon vanilla extract
1 3/4 cups (210g) all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
Dash of nutmeg
Instructions
- Preheat the oven to 425°F. Line a 12-cavity muffin pan with baking papers.
- To make the streusel, place the flour, brown sugar, granulated sugar, cinnamon, and salt in a large mixing bowl and mix with a fork to combine. Drizzle the melted butter into the bowl and fluff with the fork until the mixture forms large crumbs. Place the in the refrigerator while preparing the muffin batter.
- To make the muffins, place the butter and brown sugar in a large mixing bowl. Beat with a hand mixer on medium-high speed for 1 to 2 minutes, until smooth and creamy. Add the eggs, sour cream, milk, and vanilla, and continue beating for 1 minute more, until the mixture is light and fluffy.
- Add the flour, baking powder, baking soda, salt, and nutmeg. Beat on low speed, scraping down the sides of the bowl as needed, until the ingredients are combined into a thick batter.
- Divide the batter evenly between the 12 muffin cups, filling them nearly to the brim. Remove the streusel from the refrigerator and sprinkle a heaping tablespoon onto each muffin, pressing down gently to adhere the crumbs to the batter. Transfer the pan to the middle rack of the preheated oven.
- Bake for 5 minutes at 425°F. Reduce the oven temperature to 350°F, and continue baking for 14 to 16 minutes more, until a toothpick inserted in the center of a muffin comes out free of crumbs.
- Remove the pan from the oven. Allow the muffins to cool in the pan for 5 to 10 minutes, then transfer them to a wire rack or plate to cool completely before serving.
