To make your own henna cookies, you need a bad-ass recipe for royal icing. I used the recipe from <a href="http://amzn.to/1cEEGoW">The Art of the Cookie</a>, a must have for your cookbook collection. There are gorgeous photos and the recipes are outstanding.
Looking for a way to spruce up your holiday cookie decorating this year? You need Foodal’s ultimate guide to mastering royal icing! Use our easy recipe and try our different techniques for decoration styles. The desserts at your next holiday gathering will be too pretty to eat… well, almost too pretty!
NYT Cooking: This is a recipe for the classic icing used to decorate cut-out sugar cookies and gingerbread houses. It hardens quickly, so be sure to cover any you're not using with plastic wrap, gently pressing the wrap into the surface of the icing to prevent a crust from forming.
How to make Royal Icing. This smooth, hard-drying icing is perfect for making decorations that last. It is also useful as a "cement" to fasten decorations together. Royal icing is edible, but not recommended for icing cakes.