Simple Vanilla Cupcakes

INGREDIENTS

1/2 cup

whole milk (237 ml) ,at room temperature

1 tsp

pure vanilla extract

1/2 cup

or 113 grams) unsalted butter, at room temperature and cut into eight pieces

large egg ,at room temperature

large egg whites ,at room temperature

1 1/2

cups all-purpose flour ,sifted

1 tsp

baking powder

1 cup

sugar

1/4 tsp

coarse salt

1 cup

(2 sticks, 227 grams) unsalted butter, at room temperature

2 cups

powdered sugar

2 tsp

vanilla extract

salt

couple of drops of food coloring (optional, Americolor turquoise)