Spoiler warning. This article contains details of series 18 of MasterChef: The Professionals. A self-taught chef has been crowned winner of the latest series of the BBC's MasterChef: The Professionals. Three finalists - Luke Emmess, Mark O'Brien and Gareth Baty - made it through a series of culinary challenges, impressing not just judges Monica Galetti and Marcus Wareing but also high-profile Michelin-starred restaurateurs. The winning three-course menu was "faultless", Galetti said. Carlisle-born winner Gareth Baty, who now lives in Greater Manchester, said he had been "cooking from the heart" and was "over the moon" with his victory. Baty, who runs private dining business The Wandering Cumbrian, took on 31 ambitious professionals from a variety of backgrounds and locations in the televised section of the competition. He said his winning menu was an ode to his family.…