Chiu Chow-Style Steamed Crab

An unusual crab sold in Hong Kong markets is called by the locals ‘flower crab’ or ‘mask crab’ because of the distinct markings on the shell. It is very meaty with a delicate flavour. Many in Hong Kong believe that the best way to enjoy this crab is cooked in the Chiu Chow style; that is, to simply steam them upside down, so that all the juices and flavours of the crab are retained in the large shell, rather than lost to the steaming liquid. They are then cooled and served with a vinegar an