Chocolate Custard Pie
["1 c. sugar", "1/3 c. flour", "1/2 c. cocoa", "2 c. milk", "2 eggs, separated", "1 Tbsp. margarine", "1 tsp. vanilla", "pinch of salt", "1 cooked pie shell"]
["Beat egg yolks.", "Add milk, except 1/3 cup.", "Sift sugar, flour and cocoa and salt.", "Place in double boiler.", "Stir remaining 1/3 cup milk into dry ingredients to form a smooth paste and pour into egg mixture.", "Cook until thick.", "Add butter and vanilla.", "Pour into cooked pie shell.", "Add 2 tablespoons sugar to each egg white.", "Put whites on pie and brown at 425\u00b0."]
["sugar", "flour", "cocoa", "milk", "eggs", "margarine", "vanilla", "salt", "shell"]