A cookie exchange is a social event where participants gather to bake and share cookies. Each person typically brings a batch of their favorite cookies, which are then exchanged among the group. This allows everyone to sample a variety of treats without having to bake multiple kinds themselves. During the event, participants often display their cookies on a table, and guests can take home an assortment of cookies from others. Cookie exchanges are popular during the holiday season and can be a fun way to celebrate with friends, family, or coworkers while enjoying delicious homemade treats.