KITH'S BURGER BAR RUNS ON SUFFOLK WAGYU BEEF

Six hundred acres in Suffolk, four hundred fifty cattle, one hundred percent of the grain grown on site. That is Earl Stonham Farms, the largest pure Wagyu producer in the UK, and as of July 9 its beef is the patty inside Kith's new Burger Bar at Ronnie's London.

This is not a burger add on to an existing menu. It is a third, separate program at the same Regent Street address, with its own reservation system and a beef supplier most London chefs would name drop on purpose. That is the actual story here, not the bun. Regent Street has spent 2026 leaning into stunts like this, from Stone Island's thermoreactive billboard a few blocks over to Kith turning a lunch counter into a six seat tasting room.

Earl Stonham Wagyu Is Doing The Heavy Lifting

The patties inside every Burger Bar burger come from Earl Stonham Farms, a 600 acre operation in Creeting St. Mary, Suffolk, that has supplied pure Wagyu to some of London's top kitchens through the butcher HG Walter for more than a decade. Farm owner Andrew Deacon runs roughly 450 cattle and grows all of their grain and pasture feed on site, which is the kind of sourcing detail most burger menus bury instead of leading with.

Wagyu carries far more soft, monounsaturated fat marbled through the muscle than standard beef, which is why the fat renders differently at high heat and changes the texture of the patty itself. Kith calling it out by farm name, not just breed name, is the tell that this menu was built by someone who has actually walked the sourcing chain, not just licensed a logo.

Six Seats. Four Burgers. One Only By Request.

Guests are served a trio of amuse bouches before ordering, a bite sized preview of the three standing burgers so nobody has to guess. The Ron pairs shiitake mushroom conserva with Swiss cheese, The Don goes Italian with fresh mozzarella, beefsteak tomato and pomodoro sauce, and The OG is the straight ahead version built around Kith's own Pronto sauce. A fourth option, the Loaded Burger, is not on the standard rotation at all. It comes with braised short rib, lettuce, tomato, red onion and tarragon aioli, and it is available only if a guest asks for it directly.

That is a menu built like a tasting room, not a fast casual counter, and it tracks with reporting that the Burger Bar itself only seats six people at a time.

Ronnie Fieg Just Launched His Third Menu This Week

Ronnie's London opened its doors at 324A Regent Street on December 12, 2025, as Kith founder Ronnie Fieg's first standalone restaurant outside the United States. Since then FO has tracked Ronnie's rolling out a full brunch program and a separate lunch menu built around sandwiches from the original Ronnie's Pronto in West Hollywood, both also landing on July 9. Three distinct menus at one restaurant in a single week is not a soft launch pattern. It is a full hospitality rollout, closer to how Kith stages a sneaker collaboration than how most streetwear brands treat a cafe.

The parallel matters. Kith has spent a decade teaching customers to treat a product drop as an event with its own rules, its own scarcity and its own reservation logic. Applying that same structure to a burger, right down to a six person room that books separately from the main dining room, is Fieg running the hospitality side exactly like the apparel side.

Book The Burger Bar Separately Or Don't Bother

Reservations for the Burger Bar are live now on OpenTable, and they are a different booking entirely from a standard table at Ronnie's. Walking in expecting to order a Wagyu burger off the regular dining room menu will not work. This room is its own reservation, its own six seats, and its own amuse bouche sequence.

Fieg is not the only one treating a London address as a full event this month. Jay Z booked Tottenham Hotspur Stadium for a September 4 show four miles away, and both bets run on the same logic: a name people already trust gets more credit for showing up somewhere unexpected than for repeating what worked before. The price to craft math here favors the craft. A farm that has spent ten years supplying HG Walter and London's better kitchens is not a cost cutting choice, it is the opposite, and building a four burger program with one secret menu item around that beef is a real bet on the food carrying the room rather than the Kith name alone. Book early. Six seats a night disappears fast once the Regent Street crowd catches on, and the Loaded Burger, the one you have to know to ask for, is the one worth asking for first.