Easy Step-by-Step Wreath Cookie This simple “wet-on-wet” technique is great for beginners. Here’s how to do it: 1. Start with a thin layer of royal icing as your background. This will set the stage for the wreath. 2. Make your wreath: Pipe lines of different green shades around the edge of the cookie. Mix up the greens to give it a nice, layered look! 3. Move fast! Before the icing dries, use a scribe tool (or a toothpick) to drag from the center of each green stripe all around the cookie. Watch