INGREDIENTS
1/2 cup
butter
1 tsp
vanilla
1/2 cup
powdered sugar
1/2 cup
shortening
1
egg, room temperature
1/2 cup
sugar
1/2 tsp
baking soda
1/2 tsp
cream of tartar
2 1/4 cups
flour
1/2 cup
butter, softened
1 tsp
vanilla
1 lb
powdered sugar
green food coloring
whole milk, to thin