INGREDIENTS
1
Orange, Red
5
Egg whites, large
3 cups
All-purpose flour
4 tsp
Baking powder
1
Lemony swiss meringue buttercream frosting
1/2 tsp
Salt
2 1/3 cups
Sugar
2 tsp
Vanilla extract, pure
1
Vegetable shortening
2 sticks
Butter, unsalted
1 1/2 cups
Milk