True to its name,  Burger King’s new Kuro Burger has a jet-black bun. The secret ingredient is a dash of bamboo charcoal that BK claims brings out the flame-grilled flavor of the beef. The ketchup is blackened with squid ink. But why? The company says its celebrating its fifth year in Japan with a burger that "defies common sense." No comment. Aside from the inky ketchup, the burger is the same size and has the same toppings as a regular Whopper, and at ¥450, it costs only ¥30 more. The burgers will be on sale for a limited time starting Friday, Sept. 28.

Could bamboo ash become a trend in cuisine?  Chikutan Hime (Bamboo Charcoal Princess) webstore sells a range of black snacks, including peanuts, senbei rice crackers, and sweet fried karintou. If the hue fits, but you’re not keen on eating burnt wood, then you could get in line in Shibuya for a squid-ink baguette at upmarket French bakery Gontran Cherrier.