Chocolate Pie
["3 egg yolks (reserve whites)", "1 1/2 c. sugar", "2 c. milk", "4 Tbsp. flour", "4 Tbsp. cocoa"]
["Mix sugar, flour, cocoa, eggs and milk.", "Cook until thick. Pour into already cooked pie crust.", "Beat egg whites with 4 tablespoons sugar. Pour over pies and bake until brown."]
["egg yolks", "sugar", "milk", "flour", "cocoa"]