Diamonds for Dessert has a great recipe for these DIY sand dollar cookies. What would be a better choice of cookies to serve guests at your beach wedding than these light and crispy sand dollars? Visit Diamonds for Dessert for the recipe for these great cookies as well as other great recipes to add to your recipe box of recipes to make again and again. What's the secret ingredient in these cookies? Two actually--coconut milk and tapioca starch--head to Diamonds for Dessert blog for where to find the starch for these incredible cookies.