Olympian Mo Farah, Strictly Come Dancing judge Motsi Mabuse, actress Katherine Kelly and actor-comedian Ben Miller make meringue roulade and traditional Italian biscuits, before rendering a favourite childhood memory in the shape of a cake for the showstopper. Prue Leith and Paul Hollywood taste their efforts, while Noel Fielding and Matt Lucas keep things ticking along.

S5 Ep4 75min