By the time Gordon Ramsay burst into the American consciousness in 2007 as the star of a restaurant-rescue reality-TV series called Kitchen Nightmares, he was already among the most successful restaurateurs in the world. At 40, he controlled a seven-site empire that included dining rooms at the Savoy, the Connaught, and Claridge’s in London. His eponymous establishment in Chelsea, then just a few years old, had developed a reputation as one of the best anywhere.
At that…

