Ive shared my favorite sugar cookie and now have some great new sugar cookie recipes for Summer. I have also shared a few fun ways to decorate the sugar. This will harden and it will hardens quite quickly, its the perfect icing to decorate cookies, if desired you may omit the vanilla, I like to add it in, the amounts. Best Tasting Sugar Cookie Icing 4 ingredients and 5 minutes People have been begging for this frosting recipe for years. Now you have itThe general rule is less leavener so they dont spead, but Ive never been one to follow the rules. This recipe does spread a little. If you dont like that add a little flour. Speaking of flour, start with 2 12 cups. Add another 14 of a cup if the dough seems to sticky. If you dont like salt, leave it out altogether. If you only have salted butter, use that and reduce the salt. I prefer decorating day old cookies. They are less likely to leach oil back into your icing if they have had a day or two to dry out. They are still soft, however.