Ingredients:
- 1 1/4 cups Graham Cracker crumbs
- 1 cup all-purpose flour
- 1 teaspoon baking powder
- 1 stick unsalted butter, softened
- 1 egg, separated
- 1 cup light cream cheese, softened
- 1/4 cup granulated sugar
- 1/2 teaspoon vanilla extract
- 1 tablespoon lemon zest (from 1 medium-sized lemon)
