Microwave Chocolate Pie
["1 1/2 cups sugar", "1/2 cup flour", "3 1/2 tablespoons cocoa", "3 egg yolks", "2 1/2 cup milk", "2 tablespoons butter", "1 teaspoon vanilla"]
["Beat sugar, flour, cocoa, egg yolks and milk together. Microwave approximately 5 minutes. Stir and add butter and vanilla. Microwave 5 minutes more and stir. Microwave 2 minutes."]
["sugar", "flour", "cocoa", "egg yolks", "milk", "butter", "vanilla"]