The annual series of collaborative dinners for this year will also feature Petter Nilsson from Spritmuseum in Stockholm (previously head chef at La Gazzetta in Paris) and Tim Hollingsworth from Otium in Los Angeles (previously of Thomas Keller’s The French Laundry).
Anton Kovalkov, previously of Moscow restaurant Farenheit, and now known as a “rising star” and “culinary hooligan” of the Russian dining scene, will also join.
Roš – the only female chef taking part ‒ is chef patron at Hiša Franko in Slovenia, and one of the stars of Netflix’s documentary series Chef’s Table.
The chefs will appear weekly at the 45-cover restaurant, with a different chef every Wednesday from 7 June to 28 June, starting with Nilsson, then Roš, then Kovalkov, and finishing with Hollingsworth.
Each will create four dishes designed around their culinary identity, and Williams will create four original dishes himself, for an eight-course meal in total.
Tickets to the 7pm one-off dinners will cost £180 per person, comprising the eight courses, a glass of Champagne, canapés, petits fours, water and coffee, and service.
“This is the first year that all of the guest chefs are coming to the restaurant from outside the UK, making this CHEFstock very special indeed,” says Williams, who is head chef at his eponymous restaurant at London’s Westbury hotel.
“I’m hugely excited to collaborate with Ana, Petter, Tim and Anton; to discover some new styles of cooking and ingredients and to design some entirely new dishes of my own.
“Expect each dinner to be totally different from the last.”
Williams opened his restaurant at The Westbury hotel in 2011, following a career including the head chef role at Gordon Ramsay’s Petrus, and with Marcus Wareing at The Berkeley. The restaurant won a Michelin star within a year of opening.