Chocolate Pie
["1 c. sugar", "2 c. milk", "3 eggs, separated", "2 Tbsp. cornstarch", "2 Tbsp. flour", "3 Tbsp. cocoa", "1 baked pie shell"]
["Combine all ingredients in double boiler. Cook until thick. Pour into baked shell; top with beaten egg whites.", "Bake at 400\u00b0 until brown."]
["sugar", "milk", "eggs", "cornstarch", "flour", "cocoa", "shell"]