Baking meets the bubbling world of transfiguration as the five remaining teams find themselves in the Potions classroom. Inspired by Polyjuice Potion, hosts James and Oliver Phelps challenge the bakers to recreate two items from the Harry Potter world, such as a Nimbus 2001 broom or Beater's Bats, as hyperrealistic edible showpieces. The teams start to crack under the pressure as one pair uses the Devil's Snare penalty to tie up the competition. Judges Carla Hall and Jozef Youssef decide which team made the most convincing and delicious edible artifact.