Cut the softened margarine or butter into the cake mix. Use a fork mash them together until they are well combined and the mixture resembles coarse crumbs. Beat in the eggs, milk and rum extract and mix well. Stir in the flaked coconut until combined.
Drop by teaspoonfuls onto an ungreased baking sheet and bake at 350 degrees F (175 degrees C) for 12 to 15 minutes.
