3 Day Coconut Sour Cream Cake
["1 box Duncan Hines butter cake mix", "2 c. sugar", "16 oz. sour cream", "12 oz. frozen coconut (this comes in 6 oz. pkg. in freezer section)", "8 oz. Cool Whip"]
["Bake cake according to directions; cool.", "Split layers to make 4 layers.", "While cake is baking, combine sugar, sour cream and coconut.", "Blend well.", "Chill.", "Reserve 1 cup of sugar/sour cream/coconut mixture.", "With remaining sugar mixture, frost layers.", "To reserved 1 cup of mixture, add 8 ounces Cool Whip. Then frost top and sides with this.", "Refrigerate in airtight container.", "Keep for 3 days in refrigerator before serving."]
["cake mix", "sugar", "sour cream", "frozen coconut"]