The bakers take on a retro recipe for brandy snaps in the signature, try not to be too cheesy in the technical and reveal all with a 'my best kept secret' cake showstopper.

Kate Garraway, Gbemisola Ikumelo, Phil Wang, and Sophie Willan will be taking on mini loaf cakes in the Signature and things get spicy in the Technical. In the Showstopper the celebrities reveal their hidden talent in choux.

Roman Kemp, Amelia Dimoldenberg, Sarah Beeny and Maxine Peake take cupcakes to a new level and create memorable romantic dates in biscuit form.

A new batch of celebs enter the tent. It's spouse and sibling rivalry, as Chris and Rosie Ramsey and Scarlette and Stuart Douglas take on each other.

In three challenges, set by Paul Hollywood and new judge Caroline Waldegrave, the bakers must make delicious crumpets in the Signature, not panic over perfect piping in the Technical and recreate their celebrity hero in pastry for their Showstopper.