2Mix the chicken with soy sauce, mirin, salt, pepper, minced garlic, grated ginger, finely chopped leek, chopped spring onions, cornstarch, and the egg until well combined.
3Place a spoonful of filling onto a sheet of parchment paper, lay a wonton wrapper on top, and press in a circular motion to form the ravioli.
4Heat sunflower oil in a pan. Place the ravioli in the pan and cook for 5 minutes until the wrapper side is golden.
5Add about 150 ml of water to the pan and cover to steam the ravioli for several minutes.
6Flip the ravioli, drizzle with toasted sesame oil, and continue cooking for another 5 minutes.