Vanilla Cupcakes recipe

 

Ingredients:

Vanilla Cupcakes:
1½ cups all-purpose flour
1 cup granulated sugar
1½ teaspoons baking powder
½ teaspoon table salt
8 tablespoons unsalted butter (1 stick), room temperature
½ cup sour cream
1 large egg , room temperature
2 large egg yolks , room temperature
1½ teaspoons vanilla extract
Vanilla Buttercream Frosting:
1 cup (8 ounces) unsalted butter, at room temperature
2½ cups powdered sugar
1 tablespoon vanilla extract