It's the second round of the culinary competition, which this time focuses on biscuits. For the signature round, the contestants must concoct a luxurious chocolate-coated bake. The technical challenge is a nostalgic one for Paul Hollywood, who asks the contestants to prepare a snack that was a favourite of his father's. Finally, the showstopper round requires the bakers to rise to an eye-catching challenge that is designed to test which of them will snap under the pressure.