2 egg whites
1/4 teaspoon cream of tartar
1/4 teaspoon salt
1/2 teaspoon vanilla extract
1/2 cup sugar
In a large bowl, beat egg whites, cream of tartar and salt until soft peaks form. Add vanilla; beat in sugar until very stiff and glossy. Spread mixture into a 9-inch pie plate to form a shell.
Bake at 300*F (150*C) for 50 minutes. Turn oven off without opening oven door and leave crust in for 1 hour. Cool before filling.
Makes one 9-inch pie crust.