1 Duncan Hines Butter Recipe yellow cake mix

Prepare cake mix per box directions.

FROSTING:

12 oz. Cool Whip (or may use whipping cream)
1 sm. carton sour cream
2 c. powdered sugar
2 (6 oz.) pkgs. frozen coconut (or may use regular coconut - Baker's)

Mix frosting ingredients using 1 package coconut in icing. Split cake layers (4 layers). Frost each layer and stack. Sprinkle remaining coconut over top and sides. For full flavor, refrigerate 3 days before serving.