The remaining bakers have had five weeks of getting away with minor mistakes, but with numbers dwindling, the competition heats up and Paul and Prue expect perfection.
This week is pudding week and things get steamy in the signature. The contestants race against time in a staggering technical challenge and their multi-layered showstoppers require trifled precision.
Also tonight, Sandi returns to Cambridge University, her old stomping ground, to discover the history of the college pudding.
The Great British Bake Off, Tuesday, 8 pm – Channel 4
Image: Channel 4