Celebrity chef Bobby Flay challenges cooks renowned for a specific dish or type of cooking to a cook-off of their signature dish. At the beginning of each show, Flay receives – via bicycle messenger – a package detailing the chef he is to compete against as well as the dish. Examples of opponents include a skilled chili maker or a famous wedding cake designer. After practicing and preparing the item in question, Flay shows up for a surprise competition. During the competition, both chefs prepare their particular version of the dish, and both are then evaluated by local judges to determine a winner.