Episode 17

The first three semi-finalists battle it out for a place in finals week. First, they are sent to work alongside the incredible and inspirational chef Alyn Williams. Within the first 15 months of opening his restaurant at the exclusive Mayfair location of The Westbury, Alyn Williams had been awarded a Michelin star. The chefs are in a unique position to supercharge their knowledge under this legendary chef. The chefs are given the responsibility for one course each during a hectic lunchtime service. The chefs will have to deliver his incredible and intricate dishes to his exacting standards before they can be sent to the diners. They then must present one of the star dishes on the Alyn's Michelin-starred menu - roasted cornish turbot, with ratatouille, aerated bouillabaise and an amaretto and black olive crumb. Finally, the chefs return to the MasterChef kitchen to cook a two-course menu for Marcus and Monica. A main course and a dessert stand between them and a place in finals week.