Wash the Chinese cabbage, chop it into fine pieces, then put it in a basin, sprinkle with a little salt, stir it, and filter out the water. Peel off the skin of the prawns, remove the shrimp lines, clean and cut into small pieces. Clean the pork, chop it into minced meat, then put it in a basin, add a little light soy sauce and peppercorns, stir evenly, and marinate for fifteen minutes. Mix the Chinese cabbage, shrimp and meat filling together, add peanut oil, minced green onion, minced ginger and a little salt, stir well, and the dumpling filling is ready. The next steps are to knead the dough, roll out the dough, and make dumplings.