A sandwich cookie is a cookie with a surprise—something delicious waiting in the middle. Anna bakes an assortment of sandwich cookies in this episode and shares some of her trade secrets. She starts with Chocolate Sandwich Cookies, perfect for dunking into a glass of cold milk. Anna then ups the ante with a more challenging recipe: Almond Linzer Cookies. But for the most technically demanding sandwich cookie, and the unofficial cookie of France, Anna creates elegant French Macarons. And to top this episode off, Anna builds a Macaron Tower of colourful macarons, a spectacular dessert for a special occasion.