INGREDIENTS
6
Egg whites, large
2 1/2 cups
All-purpose flour
4 tsp
Baking powder
2 tbsp
Brown sugar, light loosely packed
5 tsp
Cinnamon, ground
12 5/16 cups
Powdered sugar
1/2 tsp
Salt
1 1/2 cups
Shortening
1 1/2 cups
Sugar
3 tsp
Vanilla
3/4 cup
Butter, unsalted
1 1/2 cups
Butter, salted
3/4 cup
Milk
3/4 cup
Sour cream
4 tbsp
Water or milk
3/8 cup
Water