It's week two and the remaining 11 bakers face Cake Week - kicking off with a crowd-pleasing signature challenge. Next, the bakers face Prue Leith's first technical, a complicated cake with a very unusual ingredient. Finally, an ambitious chocolate-collared showstopper turns up the heat in the tent. Who will rise to the various tasks - and who will melt under the pressure? Sandi Toksvig and Noel Fielding present, while series regular Paul Hollywood and Prue pass judgement before another baker leaves the contest.