Why Shake Shack is hiring a top British chef for a single day

Benjamin SnyderBy Benjamin SnyderManaging Editor
Benjamin SnyderManaging Editor

Benjamin Snyder is Fortune's managing editor, leading operations for the newsroom.

Prior to rejoining Fortune, he was a managing editor at Business Insider and has worked as an editor for Bloomberg, LinkedIn and CNBC, covering leadership stories, sports business, careers and business news. He started his career as a breaking news reporter at Fortune in 2014.

Inside A Shake Shack Inc. Restaurant Ahead Of Earnings Figures
A customer picks up an order at a Shake Shack Inc. restaurant in Philadelphia, Pennsylvania, U.S., on Friday, May 8, 2015. Shake Shack Inc., which went public in January, is scheduled to release earnings figures on May 13. Photographer: Victor J. Blue/Bloomberg via Getty Images
Photograph by Victor J. Blue — Bloomberg via Getty Images

Popular fast-food burger chain Shake Shack (SHAK) has hired top British chef Sat Bains.

The catch: It’s just for one day.

On Oct. 9, Bains, who has two Michelin stars at Restaurant Sat Bains, will create 500 orders of a special burger for the restaurant chain, according to Bloomberg. Dubbed the Major Oak, the burger will be served at Shake Shack’s restaurant in London’s Covent Garden.

Bains created the burger with help from Mark Rosati, the New York’s chain’s culinary director. The food item will cost 7.25 U.K. pounds, or $11.33.

As Bloomberg notes:

Made with Shake Shack’s Aberdeen Angus beef patty, the burger is topped with fresh shallots and a slice of Beauvale cheese from Cropwell Bishop Creamery in Nottingham, where Bains is based. Bains also created a forest-inspired ketchup made of seasonal “Penny Bun” mushrooms flavored with pine salt from the needles of local trees, as well as a smoked mayo with a hint of charcoal from the red oaks from Sherwood Forest.

This isn’t the first time Shake Shack has teamed up with a top chef. Last year, the burger chain worked with three-star Italian chef Massimo Bottura, Bloomberg said.

In August, the fast-food chain posted strong sales.