In a salute to the famed Diagon Alley, hosts James and Oliver Phelps ask each team to create fifty identical handheld desserts, inspired by one of the many different shops, and feed them to a crowd of eager Harry Potter fans on the actual set. The bakers must present their desserts in a way that highlights an interactive, magical effect. The Potter fans will vote for a winner, while judges Carla Hall and Jozef Youssef decide which team must leave the competition.