INGREDIENTS
1 1/2 tsp
Key lime, zest
7 tbsp
Key lime, juice
1 tsp
Lime, zest
3
Egg whites
1 1/4 cups
All-purpose flour
2 tsp
Baking powder
6 cups
Powdered sugar
1/4 tsp
Salt
3/4 cup
Shortening
3/4 cup
Sugar
1/2 tsp
Vanilla extract
1/4 cup
Graham cracker crumbs
6 tbsp
Butter, unsalted
3/4 cup
Butter
4 tbsp
Milk
6 tbsp
Sour cream