A foot-long gourmet hot dog is another entry in the Guinness Book of World Records for New York's Serendipity III restaurant, also creator of the world's most expensive ice cream sundae.

The pure beef hot dog is grilled in truffle oil, and served on a gourmet pretzel bun, which is grilled with truffle butter. The topping is foie gras and black truffles, and other expensive stuff. The owner Stephen Bruce said, "It's big enough that the whole family can enjoy."