Chocolate Pie
["1 c. sugar", "1 large can Pet milk", "3 egg yolks", "3 Tbsp. self-rising flour", "3 Tbsp. cocoa", "2 Tbsp. butter", "1 tsp. vanilla flavoring"]
["Cook over medium heat, stirring constantly, until thick.", "Pour into a baked nine-inch pie shell.", "Beat the egg whites.", "Fold into 1/3 cup sugar.", "Brown in moderate oven."]
["sugar", "Pet milk", "egg yolks", "flour", "cocoa", "butter", "vanilla flavoring"]