Coconut Cake
["1 pkg. Duncan Hines butter cake mix", "2 pkg. frozen coconut, thawed", "1 box confectioners sugar", "1 (8 oz.) carton sour cream"]
["Make cake according to directions on box.", "Bake in three 8 1/2-inch pans as directed."]
["cake mix", "frozen coconut", "confectioners sugar", "sour cream"]