Christmas in the South is a whirlwind of decorating, cooking, baking, and gathering around with the ones we love. Southern households usually smell of every sort of Mama's cookies that she can whip up in the kitchen – and we all have our favorites that we bring to the cookie swap. From bourbon balls to Mississippi Mud Medallions, we've got some great recommendations, but none are quite as darling as these. If you're looking to impress your friends, neighbors, and mother-in-laws this holiday season, you have to see the incredible treats that Summer Deepe of Summer's Sweet Shoppe brings to the table. These expertly decorated sugar cookies from Spring Hill, Tennessee are frosted and flooded with royal icing, and then detailed with piping bags. They're oh-so-charming – and we've got a few tips from Summer herself to help you perfect your own Christmas cookies. Start with her simple royal icing recipe, and follow along to make this Christmas the sweetest (pun intended!) yet.