Hengshun Chinkiang Vinegar is a form of Chinese black vinegar created by adding acetic acid and bacteria to glutinous rice.
A perfect accompaniment for xiao long bao which is is a type of Chinese steamed bun (baozi) especially associated with Shanghai and Wuxi. It goes well with any type of dumplings also a condiment.
You can pair it with soy, onions, chilli or coriander. Whatever your flavor this well adjusted fine vinegar will easily adapt to your personal taste.