Coconut Cake
["1 box white cake mix", "1 3/4 c. sugar", "2 (8 oz.) carton sour cream", "2 (6 oz.) pkg. frozen coconut", "1 (9 oz.) carton Cool Whip"]
["Prepare cake according to directions.", "Cool and split layers. Combine sugar, sour cream and coconut.", "Reserve 1 cup of sour cream mixture for frosting.", "Spread remainder between layers of cake, split side up."]
["white cake mix", "sugar", "sour cream", "frozen coconut"]