Place the piece of pork into a deep pot with water, ginger and spring onions and bring to boil then simmer until a chopstick can poke through the deepest part. Save a cup of the stock.
Remove pork and marinate with soy sauce and 5 spice powder. Marinate 24 hours.
Heat oil and fry the pork (refer to pic) remove pork and save half cup of oil.
Slice the pork into chunky pieces)
Heat the saved oil and fry the minced garlic. When light brown add in the white of spring onions, rock sugar and pork.
Then season with the oyster sauce and pour in the marinate.
cover and let simmer for 10 to 15 minutes (depending if you have dentures!)
Open cover and add in green of spring onions and 2 tbsp of rice wine. serve.
Taste and adjust seasoning to suits your taste.