Mix duck with marinade. Use 1 tbsp oil to pan-fry duck until golden. Set aside.
Use the same wok with the duck oil to sauté ginger, green onion, onion and Chinese parsley. Sizzle wine and add seasoning mix. Bring to a boil and add the duck. Cover and simmer for 30-45 minutes. Take out to cool.
Cut the duck into pieces. Use some cornstarch solution to thicken sauce and pour over the duck to serve hot.