MasterChef: The ProfessionalsEpisodes Available now

Episode 18—Series 18

18/21The five remaining chefs join a two-Michelin-star restaurant brigade before finals week.

17/21The semi-finalists are asked to cook their own Thai-style dish.

16/21The semi-finals begin with the remaining eight chefs challenged to deliver a no-waste dish

15/21Five more chefs take on the pop-up challenge of a lifetime.

14/21Five contenders head to Boxhall in central London for their first challenge.

13/21The chefs who have cooked their way through to knockout week face an invention test.

12/21The last group of quarter-finalists are set an invention test featuring mince.

11/21The skills test challenges are a pea and ricotta raviolo and a poached pear mille-feuille.

10/21The competing chefs are set skills tests inspired by French classic cookery.

9/21This week's quarter-finalists are faced with an invention test that must scream chicken.