James and Oliver Phelps ask the nine baking pairs to create a piece that shows their love for Harry Potter.

The teams are in the Gringotts Wizarding Bank, where James and Oliver Phelps ask the bakers to create showpieces inspired by the bank's main hall, tunnels and vaults.

In a salute to the famed shops of Diagon Alley, hosts James and Oliver Phelps challenge the bakers to make 50 handheld desserts to feed a crowd of Harry Potter fans, who vote on a winner; judges Carla Hall and Jozef Youssef decide which team must go.

Hosts James and Oliver Phelps challenge the baking teams to create a 1m-tall showpiece inspired by Hogwarts' Forbidden Forest, and Harry Potter alumna Evanna Lynch joins the judges.

James and Oliver Phelps ask bakers to create a 1.2m-tall showpiece inspired by Albus Dumbledore's office items; Harry Potter alumna Bonnie Wright joins judges Carla Hall and Jozef Youssef to decide which teams advance to the final showdown.

James and Oliver Phelps host as bakers create edible showpieces on Harry Potter film sets; guest actors share experiences as they join judges Carla Hall and Jozef Youssef.