Five Guys – South Kensington Branch Five Guys has opened on Thurloe Street. The Bun Our buns are baked with a secret recipe using free range eggs. They are warmed on a dedicated grill to get the perfect toast. Patties Our beef is 120 day grain-finished from family owned farms in Ireland and UK. We serve our patties juicy and well done. The Cheese We place two slices of American-style cheese between two freshly cooked patties, sealing the warmth in a foil wrapper to ensure the perfect melted consistency.