Bake Off's back as Daisy Ridley, Rob Beckett, Alexandra Burke and Tom Allen make millionaire shortbread, a fruity tart and their pet hates in cake form.

James McAvoy, Anne-Marie, David Baddiel and Dame Kelly Holmes make signature decorative tarts and a savoury technical, and render their spirit animals in cake form in the showstopper.

Dizzee Rascal, Nick Grimshaw, Philippa Perry and Reece Shearsmith tackle vegetable slices, a royal technical and a 'selfie' made entirely from biscuit.

Stacey Dooley, Jade Thirlwall, KSI and Katherine Ryan make cocktail-flavoured fondant fancies and have their pastry skills tested, before creating a showstopping biscuit and meringue scene.

Anneka Rice, John Bishop, Nadine Coyle and Ade Adepitan tackle decorative choux buns and financiers before making a showstopping cake that represents something from their bucket list.

Emma Willis, Clara Amfo, Blake Harrison and Alex Horne take on decorated biscuits, madeleines and a showstopping choux sculpture which embodies their secret talent.

Ruby Wax, Gareth Malone, Laura Whitmore and Yung Filly make signature fruit turnovers and a chocolate fondant technical, and relive their most embarrassing moments in a meringue showstopper.

Matt Lucas dons an apron to bake alongside DJ Annie Mac, Ed Gamble and rapper Example as they tackle signature stained-glass biscuits, a jam-packed technical, and showstopping cakes that showcase what they did before they were famous.

Mo Farah, Motsi Mabuse, Katherine Kelly and Ben Miller tackle meringue roulades in the signature challenge, make traditional Italian biscuits in the technical, and render their favourite childhood memory in cake form in the showstopper.

Ellie Goulding, Mawaan Rizwan, Sophie Morgan and Tracey-Ann Oberman make marble cake in the Signature and jam roly-poly in the Technical, before making a showstopping biscuit portrait in honour of their own celebrity hero.

The celebs tackle a savoury pie signature and fiddly French confection in the technical, before recreating their most embarrassing celebrity fail in meringue.

AJ Odudu, Gemma Collins, Jessica Hynes and Tim Key make sandwich cakes and a classic tart, before recreating their earliest childhood memory in choux.

Actor David Morrissey, comedian Lucy Beaumont, Olympic medal-winning diver Tom Daley and radio presenter and cancer survivor Adele Roberts attempt a savoury quiche signature, a technical teatime biscuit and a showstopping day off in cake form.

Paddy McGuinness, Coleen Nolan, Joe Thomas and Ellie Taylor make Jaffa cakes, take the rough with the smooth in the pastry technical, and render their home towns in biscuit for their showstoppers.

Deborah Meaden, Jay Blades, Judi Love and Mike Wozniak make signature cheesecakes, a vegan version of a BBQ classic for the technical, before recreating their first celebrity crush for their showstopper.