Lemon Cake Pie
["1 c. sugar", "1/8 c. butter", "2 eggs (separate whites)", "3 Tbsp. flour", "juice and rind of 1 lemon", "1 c. milk"]
["Cream sugar and butter. Add egg yolks.", "Add remaining ingredients (flour, lemon juice, lemon rind and milk).", "After thoroughly mixed, fold in stiffly beaten egg whites.", "Pour into unbaked pie shell (9-inch). Bake at 325\u00b0 for 45 minutes to 1 hour."]
["sugar", "butter", "eggs", "flour", "lemon", "milk"]