By Western standards the Japanese seem to have quirky food tastes if delights such as basashi (raw horse meat) and kinkan (grilled chicken ovaries) are anything to go by.

But they wouldn't mess with the good old Kit Kat would they? Think again. Going on sale this month in Tokyo is Kit Kat soy sauce flavour.

The blurb on the pack proudly states: 'The scent of soy sauce matches the sweetness of chocolate.' But I'm not convinced. Suddenly kinkan sounds pretty good.