Ellie Taylor and Liam Charles present as the remaining teams make 24 savoury mille-feuille - more commonly known as a vanilla slice - and 24 babka buns - a rich twisted pastry with a sweet filling. For their second challenge, they craft showpieces inspired by Ancient Wonders out of biscuit, accompanied by petit gâteaux. Pâtisserie experts Benoit Blin and Cherish Finden taste their efforts - and decide who will be leaving the contest.