1 box yellow cake mix
2 cups (16 oz) sour cream
2 cups sugar
1 1/2 cups flaked coconut
1 (8 oz) carton cool whip, thawed
prepare & bake cake according to pkg directions in two 9″ round cake pans. cool in pans for 10 minutes before removing to wire rack to cool completely.
for filling, combine sour cream & sugar; mix well. stir in coconut. (filling will be soft). fill & frost.