Masterchef (UK) is een Brits competitieprogramma van de zender BBC One. De serie ging in première op 21 februari 2005.
12 hobbykoks gingen de ultieme kookstrijd met elkaar aan en kregen de meest onmogelijke opdrachten voor hun kiezen, waarbij ze werden beoordeeld door de onverbiddelijke jury bestaande uit Peter Lute en Alain Caron.
With three contestants already through to the semi-finals, the best six remaining cooks go head to head to fight for their place alongside them. Judges John Torode and Gregg Wallace are joined by renowned chef Theo Randall. Previously awarded a Michelin star when he was head chef at the River Cafe, Theo is now the proprietor of Theo Randall at The Intercontinental. The six amateur cooks are set a brief by Theo to create one outstanding dish inspired by Italian cuisine, and they have just 90 minutes to prep and cook it. At this stage in the competition, the judge's expectations are sky high, and only the five best cooks will keep their place and join the other three semi-finalists. This is the cooks' final chance to prove they've got what it takes to stay in the competition and take a step closer to being crowned MasterChef champion 2018.