green cabbage • ground pork (about 1.2 kg) • green onions (about 300 g) • small onion, minced • To taste, minced ginger • To taste, fresh shrimp, peeled • dumpling wrappers (about 1.5 kg, large size) • little all-purpose flour • To taste, chicken bouillon powder • To taste, sesame oil • To taste, vegetarian oyster sauce