1 box Devil's Food cake mix, mix according to directions
1 (14 oz.) coconut
1 med. Cool Whip
2 c. sugar
1 (16 oz.) sour cream

Make 2 (8 inch) layers and cool completely. Split each layer. Combine sugar, coconut and sour cream. Chill all. Spread coconut and sour cream mixture on top and sides of cake. Seal in airtight container and store in refrigerator for three days.