INGREDIENTS
3
Egg whites, large
1 1/4 cups
All purpose flour
2 tsp
Baking powder
4 cups
Powdered sugar
1/4 tsp
Salt
1/2 cup
Shortening
3/4 cup
Sugar
3 1/2 tsp
Vanilla
6 tbsp
(84g), unsalted butter, unsalted
1/2 cup
Butter, salted
6 tbsp
Milk
6 tbsp
Sour cream
2 tbsp
Water or milk
2 tbsp
Water