Overview: In this heat, chefs are challenged to make a classic French dessert and a blue steak.
Overview: In this heat, skills tests feature an omelette Arnold Bennett and filled brandy snaps.
Overview: The first quarter-final challenge is to create a dish from a selection of ten ingredients.
Overview: In the skills test, the chefs make a buck rarebit and joint a rabbit.
Overview: Three chefs prepare scallops in different ways: in a mousse, sauteed and as a tartare.
Overview: The chefs cook for some of the country's most discerning restaurant critics.
Overview: The chefs must fillet a sea bream and make the perfect watercress soup in the skills test.
Overview: Monica tests the chefs' butchery skills when she asks them to debone a pig's trotter.
Overview: The chefs' pastry skills are tested in the quarter-final round.
Overview: The last week of the heats kicks off with six new chefs.
Overview: The chefs prepare langoustines and cook high-end burgers in the final heat.
Overview: The week's six best chefs serve up a two-course menu to three restaurant critics.
Overview: The 12 best chefs cook off against each other in the MasterChef kitchen.
Overview: The chefs must work together to serve an exceptional dinner at London's Law Society.
Overview: The chefs travel to Lord's Cricket Ground to cook a fine-dining menu for Mike Gatting.
Overview: Two semi-finalists cook alongside joint Professional MasterChef champion Anton Piotrowski.
Overview: The semi-finalists cook for Tom Kitchin at his Michelin-starred restaurant in Edinburgh.
Overview: The last three semi-finalists work with chef Lisa Allen at the Michelin-starred Northcote.
Overview: It's finals week. After one goes out in the invention test, the chefs cook for their idols
Overview: The finalists travel to the medieval city of Alba in the Piedmont region of northern Italy
Overview: It's the final. Who will be crowned Professional MasterChef Champion 2015?