It's crunch time for the bakers as biscuit week arrives andthey are asked to produce illusion macarons, before workingout the recipe for a fruity favourite in the technical. In theshowstopper, they come up with a 3D mask made entirely frombiscuit. Noel Fielding and Matt Lucas find out who will be topcookie and who will crumble under the pressure, while PaulHollywood and Prue Leith judge their efforts.
