The most expensive junk food

$120

Celebrity chef Daniel Bouloud gave this all-American dish a fancy French makeover and a couture price tag. His version of the classic ground beef burger is stuffed with red wine-braised short ribs (off the bone), foie gras, a mix of root vegetables and preserved black truffle. Hold the ketchup though, the pièce de résistance is a double helping of fresh black truffles on top.

This burger, if you can call it that, is served on a homemade toasted parmesan and poppy seed bun with a touch of fresh horseradish, oven roasted tomato confit, fresh tomato, red onions and frisée lettuce. And, of course it comes with a side of French fries -- or pillows of pommes soufflé if you prefer.

Foodies should note that the Royale is only served at DB Bistro Moderne in New York City and at the Daniel Boulud Brasserie in Las Vegas during the black truffle season, which usually runs from late December through the end of March.