• An advertising poster for the new black hamburger.
    An advertising poster for the new black hamburger.
  • Black hamburger buns are seen at a Burger King restaurant. The black buns are smoked with bamboo charcoal.
    Black hamburger buns are seen at a Burger King restaurant. The black buns are smoked with bamboo charcoal.
  • A Burger King employee prepares a black hamburger. The black burgers, one a Kuro Pearl, has black buns and cheese smoked with bamboo charcoal and black sauce made of squid ink. The other, the Kuro Diamond, comes also with lettuce, tomato, onion and mayonnaise.
    A Burger King employee prepares a black hamburger. The black burgers, one a Kuro Pearl, has black buns and cheese smoked with bamboo charcoal and black sauce made of squid ink. The other, the Kuro Diamond, comes also with lettuce, tomato, onion and mayonnaise.
  • A man walks by a Burger King poster advertising the Kuro Diamond burger, top, and the Kuro Pearl burger in front of its Shibuya restaurant in Tokyo.
    A man walks by a Burger King poster advertising the Kuro Diamond burger, top, and the Kuro Pearl burger in front of its Shibuya restaurant in Tokyo.
  • Two wrapped black hamburgers ready to go.
    Two wrapped black hamburgers ready to go.
  • A Burger King employee prepares a black burger.
    A Burger King employee prepares a black burger.
  • The burgers are available from September 19 through early November in Burger King restaurants throughout Japan.
    The burgers are available from September 19 through early November in Burger King restaurants throughout Japan.
  • The Kuro Pearl, left, costs ¥480 (about Dh16). The other, the Kuro Diamond at costs ¥690 (about Dh23)
    The Kuro Pearl, left, costs ¥480 (about Dh16). The other, the Kuro Diamond at costs ¥690 (about Dh23)

In pictures: Who wants to try a ‘black burger’?


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Burger King Japan has rolled out the ‘Kuro Burger’, which has black buns, black sauce and, strangely, black cheese. Curious? All photos by Keith Tsuji / Getty Images