Lemon Chiffon Pie
["1 (9-inch) pie crust, baked", "4 eggs, separated", "3/4 c. sugar", "1 envelope unflavored gelatin", "2/3 c. water", "1/4 c. lemon juice", "1 Tbsp. grated lemon rind", "1/2 tsp. cream of tartar", "1/2 c. sugar"]
["In saucepan, blend the egg yolks, 3/4 cup sugar, gelatin, water and lemon juice.", "Cook over medium heat until it boils and begins to thicken a little.", "Add lemon peel.", "Place in a pan of ice water or chill in refrigerator until the mixture mounds when dropping from spoon.", "Beat egg whites and cream of tartar until almost stiff.", "Add 1/2 cup of sugar, 1 tablespoon at a time, until stiff and flaky.", "Fold in the lemon mixture.", "Pour into pie crust.", "Chill several hours before serving."]
["pie crust", "eggs", "sugar", "unflavored gelatin", "water", "lemon juice", "lemon rind", "cream of tartar", "sugar"]