Wash the hairy crabs first, and the rope that binds them can be untied.
Second, put the right amount of hot water into the steamer. After the fire boils, put the hairy crabs belly up into the steamer, cover the lid and steam for about 15 minutes.
3. Wash, peel and chop ginger, mash garlic and chop onion, as shown in the figure below.
4. Put the soy sauce, balsamic vinegar, sesame oil, onion, ginger and minced garlic into a bowl, and mix well to make a dip.
5. Take out the steamed crab, untie the rope and put it on the plate, and dip it in the sauce when eating.