Lemon Cake Pie
["1 c. sugar", "2 Tbsp. flour", "1 Tbsp. butter", "2 egg yolks", "juice and rind of 1 lemon", "1 c. milk", "2 egg whites"]
["Mix sugar, flour, butter, lemon and egg yolks.", "Add milk and whites of eggs (beaten stiff).", "Bake in uncooked pie shell at 350\u00b0 for 40 to 45 minutes."]
["sugar", "flour", "butter", "egg yolks", "lemon", "milk", "egg whites"]