In a bowl, combine the pork, spring onion, soy sauce, sesame oil, garlic, and ginger. Mix well until sticky, then slowly stir in the water until the filling is slightly loose.
Spoon balls of the mixture into a pan and keep space between them for the wrappers. Place a wonton wrapper over the top of each and push down the edges slightly. Top with a little oil. Place on medium heat, add water and cover with a lid.
Cook 5-7 minutes or until pork is cooked. Remove the lid and let any remaining water cook off so the bottoms crisp up. Repeat until all dumplings are made.
Top with soy sauce, sliced green onions, chili oil, and a drizzle of Japanese mayo!
