Amateur cooks including a dairy manufacturer, a medical writer and a maths student enter the kitchen to battle for one of four MasterChef aprons. They begin by producing their signature dish, before following a recipe for a fish finger open sandwich, served with tartare sauce and pickle slaw - the catch being parts of the recipe are missing. Finally, the pick of the crop cook for three diners who know a thing or two about MasterChef - previous winners Chariya Khattiyot and Steven Wallis, and former finalist Omar Foster. Presented by Grace Dent and Anna Haugh