It's the semi-final. The bakers' patisserie skills are tested as they make delicate layered slices, a French classic and opulent entremets displays. Who will make it to the final?

Swapping the Pink Palace for an equally iconic erection, Olly Alexander; Lydia West; Nathaniel Curtis; and Shaun Dooley will enter the Bake Off tent to try their hand at some festive themed bakes. Judges Prue Leith and Paul Hollywood and hosts Noel Fielding and Matt Lucas will preside over the hotly contested competition to see who on the cast knows their sieves from their spatulas.