The internet had a field day ripping it out of poor old Hipster Stu last week with his fedora and his beetroot gateaux (seriously, what was he thinking?) The remaining 11 however must now prove their skill at making biscuits, a task that can be deceptively difficult, and one that has undone many a confident Bake Off contestant in the past. First off tonight they must create 24 biscotti - Italian delicacies that must be baked twice to deliver the perfect crisp crunch. Next is Paul Hollywood's technical challenge, in which the contestants tackle Arlettes - labour-intensive, puff pastry-based treats from southwest France. Finally, for the showstopper, the judges demand bespoke edible biscuit boxes, filled with 36 biscuits of different flavours.