INGREDIENTS
1/4 tsp
baking powder
1 tsp
baking soda
1 large
egg
1 1/2 cups
flour
1 Tbsp
food coloring
1 cup
granulated sugar
2 cups
powdered sugar
1/4 tsp
salt
1/2 cup
unsalted butter
2 Tbsps
unsweetened cocoa powder
1/2 tsp
vanilla extract
1/2 cup
vegetable shortening
1 Tbsp
water