McDonald’s Now Sells ‘Quarter Pounder Jewelry’ Burgers in Japan Scary truffles. Craving a burger with black-truffle sauce, Emmental cheese, grilled onions, and mushrooms? Look no further than McDonald's Black Diamond Quarter Pounder. Seriously: The chain's selling limited-edition "premium" burgers in Japan. The Gold Ring comes with pineapple, bacon, Monterey Jack cheese, and barbecue sauce, and the Ruby Spark is topped with chorizo, avocado, and Pepper Jack ...
July 8, 2013 - New York Magazine