Mix first five ingredients in ... and pour into sheet pan. Bake at 350 degrees for 32 to 35 minutes. While cake is warm, punch holes in ... then sprinkle frozen coconut.
Use 10 1/2 x 15 1/2 sheet pan. Make cake mix, bake, cool. Beat together ... Refrigerate. Can be made day before. Bake at 350 degrees for 28 to 34 minutes.