Clean the pork and cut into cubes. And cut white radish into small cubes with the similar with pork cubes.
Rinse the pork cubes in boiling water for 2-3 minutes or soak them in clean water for about 30 minutes.
Heat up a small amount of oil and stir-fry the cubes to reduce exceeded oil. Then move out.
Heat up 1 tablespoon of oil in wok. Add garlic,ginger red chili pepper, sichuan peppercorn and doubanjiang (optional)to stir-fry until you can smell the flavor.
Put all the stir-fried pork cubes in and continue stir-fry for 2 minutes. Add dark and light soy sauce and enough hot water to soak all the pork as well as star anise..
Turn down the fire to simmer for about 10 minutes. Add radish cubes in and continue the process of simmering.
Turn up the fire to absorb the water, add salt and serve hot.