1 box butter flavored cake mix (Betty Crocker)
1 c. sugar
1 (8 oz.) carton sour cream
2 pkgs. frozen coconut
1 lg. carton Cool Whip

Prepare cake mix according to package directions. Make 2 layers. When completely cool, split layers in half.

Icing: Combine sugar, sour cream, and coconut. Blend well. Combine this mixture with whipped topping. Blend until smooth. Spread between layers on side and top. Seal in air-tight container and refrigerate 3 days before serving.