1. Wash the shrimps with clear water, then remove the shells and shrimp lines, and cut them in half for later use.
2. Wash leeks with clear water, and then chop them on the chopping board for later use.
3. Mix pork stuffing with cooking wine, soy sauce, oyster sauce, monosodium glutamate, chicken essence, thirteen spices and salt.
4. Add a little water, then add chopped shrimps and mix well for later use.
5. Put the chopped leek in and stir well, and the seafood dumpling stuffing will be ready.