This is the best sugar cookie recipe and the only one I use. Whenever you make these cookies for someone, be sure to bring along several copies of the recipe — you will be asked for it, I promise! Note: I make icing with confectioners' sugar and milk. I make it fairly thin, as I "paint" the icing on the cookies with a pastry brush. Thin enough to spread easily but not so thin that it just makes your cookies wet and runs off.