2. Wash the onion and cut it into onion segments; Wash and slice ginger, then cut half of ginger into Jiang Mo.
3. Slaughter the cream crab first, cut off the crab claws, cut the crab heart into pieces, cut the crab claws into two pieces, and chop the crab cover into small pieces.
4, build by laying bricks or stones on the plate, build by laying bricks or stones, first put the crab claws on the bottom of the plate, then arrange the crab hearts one by one around the crab claws to form a circle, then put the crab covers on it, then put the crab roes one by one in the crab hearts, and then put the remaining crab roes on each small crab cover.
5. Add raw onion and ginger and steam in a cage until cooked.
6. Discard ginger and shallots and eat them with ginger and vinegar.