Cream Cheese Cake
["1 c. margarine", "1 stick butter", "8 oz. cream cheese", "3 c. sugar", "6 eggs", "3 c. flour", "1 tsp. vanilla"]
["Preheat oven to 325\u00b0.", "Grease and flour tube pan."]
["margarine", "butter", "cream cheese", "sugar", "eggs", "flour", "vanilla"]