INGREDIENTS
1 cup
unsalted butter, (softened, 2 sticks)
1 cup
granulated sugar
1
egg
1 tsp
vanilla extract
2 cups
all-purpose flour
3/4 cup
Dutch-process cocoa powder
1 1/2 tsp
baking powder
1 tsp
salt
1/2 cup
unsalted butter, (softened, 1 stick)
1 tbsp
half and half
2 cups
powdered sugar
2
drops red food coloring