In Paris, Burgers Turn Chic . (NY Times)

Beginning a few years ago but picking up momentum in the past nine months, hamburgers and cheeseburgers have invaded the city. Anywhere tourists are likely to go this summer — in St.-Germain cafes, in fashion-world hangouts, even in restaurants run by three-star chefs — they are likely to find a juicy beef patty, almost invariably on a sesame seed bun.

“It has the taste of the forbidden, the illicit — the subversive, even,” said Hélène Samuel, a restaurant consultant here. “Eating with your hands, it’s pure regression. Naturally, everyone wants it.”