Frozen Lemon Pie
["1 1/4 c. graham cracker crumbs (roll very fine)", "2 Tbsp. melted butter", "3 eggs, separated", "1/2 c. sugar", "1/4 c. lemon juice", "1 tsp. lemon rind", "1/2 pt. whipping cream, whipped"]
["Mix 1 cup graham cracker crumbs with melted butter and line an 8-inch pan.", "Combine egg yolks, sugar, lemon juice and lemon rind. Cook over very low heat until thick, stirring constantly.", "Chill and fold in whipped cream.", "Beat egg whites until they stand in peaks and fold into lemon mixture.", "Pour into lined pan and sprinkle with remaining graham cracker crumbs.", "Wrap in moisture vapor-proof wrapping paper and freeze.", "Serve frozen."]
["graham cracker crumbs", "butter", "eggs", "sugar", "lemon juice", "lemon rind", "whipping cream"]