World's Most Expensive Burger

Price Tag: US$200
World's most expensive burger at a Burger King in London. Ingredients include Wagyu Beef, Whit Truffle, Iranian Saffron & white truffle dusted bun, Pata Negra Slices, Cristal Champagne onion Straws, 25-year-old Balsamic vinegar, Lambs lettuce, Pink Himalayan rock salt and Hollandaise shallot mayonnaise.