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.
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.