It's the first quarter-final, and this week's four most talented cooks return to fight for a place in Knockout Week. They face just one intense challenge: cooking two courses that will excite not just John and Gregg but also some of MasterChef's most inspiring winners, finalists and contestants, all of whom have gone on to careers in the food industry.Tonight, their fate is in the hands of last year's MasterChef finalists and champion: Eddie Scott, Pookie Tredell and Radha Kaushal-Bolland.Only the best cooks can earn themselves a place in Knockout Week, so these amateurs need to show real flair and ambition to edge closer to the MasterChef 2023 trophy.