Pipe buttercream roses, rosettes and other decorations using this hard-drying royal icing. Made using only three ingredients, this easy royal icing recipe is great for outlining and flooding sugar cookies, as well as piping festive holiday decorations on your gingerbread house. Because this royal icing dries hard, it’s not recommended for icing cakes and cupcakes, but it can be used to attach piped flowers and other decorations to your treats. You can even make royal icing decorations weeks in advance for even easier decorating. Though traditionally made with egg whites, you can make this royal icing recipe without eggs using Wilton Meringue Powder.