Combine bread and milk in a large mixing bowl; set aside 5 minutes. Add eggs, sugar, raisins, butter, and vanilla; stir well. Spoon mixture into a greased 3-quart casserole. Bake, uncovered, at 325° for 1 hour or until firm. Cool in pan at least 20 minutes before serving. Spoon into individual serving bowls; serve with Whiskey Sauce.