INGREDIENTS
1 cup
unsalted butter, room temperature
3/4 cup
granulated sugar
1
large egg
1 tsp
vanilla extract
2 3/4 cups
all-purpose flour
1/4 cup
cocoa powder
1 tsp
baking powder
1/4 tsp
salt
3 cups
powdered sugar
1 tsp
vanilla extract
2 tsp
milk
food coloring