Sour Cream Coconut Cake
["1 pt. sour cream", "2 c. sugar", "1 Tbsp. vanilla", "12 oz. pkg. frozen coconut", "1 box white or yellow cake mix"]
["Mix sour cream, sugar, vanilla and coconut.", "Reserve enough coconut to put on top of cake, if desired, and refrigerate overnight.", "Mix and bake cake mix according to directions on box, making 2 layers.", "Slice the layers to make 4 and spread the filling between them."]
["sour cream", "sugar", "vanilla", "frozen coconut", "white"]