Combine ingredients of the marinade, pour it over the minced pork, stir well and marinate pork for at least 2 hours. Add 2 tbsp oil and mix well before cook.
Heat 2 cups oil in a wok until it reaches 150℃. Add pork, stir the pork gently for 1 minute over medium heat. Add sugar, broad bean sauce and chili sauce, stir well until all pork cubes coated and colored. Cook for 5 minutes. Turn off the heat, let the sauce cool.
Add enough water to the sauce pan and bring to a boil. Add dry noodles. Cook until it is soft enough. Transfer the noodle soup to a big bowl. Add a pinch of salt, chicken powder and light soy sauce to the soup. Serve with spicy pork sauce and sliced spring onion.