Sour Cream Coconut Cake
["1 (8 oz.) pkg. butter flavored cake mix", "2 c. sugar", "1 (16 oz.) carton sour cream", "18 oz. frozen or regular coconut", "1 1/2 c. Cool Whip"]
["Prepare cake mix as directed, using real butter and 8-inch cake pans. When completely cool, split layers, making 4 layers."]
["butter", "sugar", "sour cream", "regular coconut"]