This dish uses two ready-made items to great effect won ton wrappers and packet dashi broth. Won ton served in even very good Cantonese dim sum restaurants tend to be rather coarse and basic both in terms of taste and appearance. Here, using the best raw Tiger prawns and carefully balanced flavourings, a much more refined and subtle result is achieved.
Won ton wrappers are sold in packs of fifty or one hundred, but you can freeze what you don't use for up to six weeks - after that they become brittle. Tiger prawns, which have green shells, can be bought frozen from Oriental food markets. If you can't get a hold of dashi you can serve a light chicken or clear fish broth instead.