Heat oven to 350 degrees. Grease and flour 2 round pans or 13x9 pan. Prepare cake mix as directed on package, except substitute pineapple for the water. Stir shredded coconut and rum flavoring into the batter. Pour into pans. Bake as directed. Cool 10 minutes. Remove from pans and cool completely. Fill and frost with Cool Whip. Sprinkle with toasted coconut. Keep refrigerated.
From: Glorious Grub Cookbook By. Joan Stewart