Chocolate Pie
["1/2 c. flour", "3 Tbsp. cocoa", "1 c. sugar", "pinch of salt", "2 1/2 c. milk", "2 well beaten egg yolks", "1 Tbsp. vanilla", "1/4 stick oleo", "1 (9-inch) pie shell, baked", "2 egg whites", "4 Tbsp. sugar"]
["In top of double boiler, mix flour, cocoa, sugar and salt.", "Add milk and egg yolks.", "Place on bottom of double boiler in which water is boiling.", "Cook on high heat, stirring constantly until thick.", "Remove from heat.", "Add oleo and vanilla.", "Beat until smooth.", "Pour into baked pie shell."]
["flour", "cocoa", "sugar", "salt", "milk", "egg yolks", "vanilla", "oleo", "pie shell", "egg whites", "sugar"]