Steaming is the best way to cook Gao crab. First, get the ovary and digestive glands out of a Gao crab and mix them with unboiled oil. Then cut the crab shell into several pieces, put them on a plate, add to them some minced ginger and shallot, and steam by brisk fire for 10 minutes. After that, remove the ginger, shallot and water off the plate, spread the ovary and digestive glands on the crab shell, and steam by less brisk fire for two minutes. When eating the crab, don’t forget to use minced ginger and vinegar as sauce.