Looking for a beautiful table decoration for Thanksgiving or a treat our kids can enjoy? Make these leaf cutout cookies, dipped in a marbled royal icing, which not only taste yummy but also look beautiful adorning a holiday table. The cookies are semisweet, flaky, and buttery like a shortbread. I used vegetable-based food coloring for the icing, and the colors still came out vividly. Royal icing dries hard and shiny, so these cookies won't stain the faces and hands of your kids as they gobble them up.