Burger King launches $185 'bling burger'

The world's most expensive burger - flame grilled Wagyu Beef, topped with white truffles in an Iranian saffron and truffle bun - is to go on sale at a fast food restaurant.

The world's most succulent Japanese beef is complemented with white truffles, onion tempura prepared in Cristal champagne and Italy's finest Pata Negra prosciutto.

David Kisilevsky, vice president of marketing at the fast food chain, said: "The Burger is an extension of Burger King's quality burger menu and is aimed at burger aficionados, looking for the ultimate burger taste experience.