1 box Duncan Hines Yellow Cake Mix
1 lg. sour cream (16 oz.)
2 (9 oz.) pkgs. frozen coconut
1 c. sugar

Bake cake as directed on package. Let cool. Cut each layer with a string to make 4 thin layers.

Beat together remaining ingredients and spread on each of four layers. (Reserve some of icing for top and sides of cake.) Place the four layers on separate plates and refrigerate until cold. Then stack on one another. Spread rest of icing around sides of cake to cover. Refrigerate for 3 days before using.