Prepare the dumpling filling by combining 300g pork mince with chopped green onion, minced garlic clove, and minced fresh ginger
Add cornstarch, soy sauce, dark soy sauce, oyster sauce, sesame oil, and mirin to the pork mixture
Season with salt and pepper to taste and mix in cold water until well combined
Layer dumpling wrappers or wonton pastry in a ramekin, brushing with water between layers
Spread the pork filling mixture between the dumpling wrapper layers
Continue layering wrappers and filling until all ingredients are used, ending with a wrapper layer
Cook according to preferred method until golden and cooked through
