INGREDIENTS
1/2 cup
butter
1 cup
powdered sugar
1/2 cup
vegetable oil
1 large
egg
1 tsp
clear vanilla flavoring
3 cups
cake flour
1 tsp
baking powder
1 tsp
baking soda
1 tsp
cream of tartar
1/2 cup
shortening
3 cups
powdered sugar
1 tsp
clear vanilla flavoring
4 tbsp
heavy cream
1 pinch
salt optional
1 serving
sprinkles