Gan Xiang crab vs salted egg crab. Gan Xiang is a special sauce made by the head chef, it is made of 30 ingredients including 2 types of curry and ppl that know it is sworn to secrecy. It is a mean sauce that is peppery and spicy. As for the salted egg yolk sauce, there is enough oomph and you can really taste the salted egg distinctly. Gan Xiang crab definitely wins in term of uniqueness but salted egg yolk crab would win on tastiness.