The Great Celebrity Bake Off for Stand Up To Cancer — Episode 4: Mo Farah, Motsi Mabuse, Katherine Kelly, Ben Miller

You are watching the episode Mo Farah, Motsi Mabuse, Katherine Kelly, Ben Miller 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.