Making of superior stock (specially for sharkfin)

Ingredients:
1 pc chicken breast bones
200g lean pork
500g pig bones
100g chinese ham (jin hua huo tui) or preserved ham
6 chicken feets

Method:
1. Wash all the ingredients and put into a pot.

2. Pour in 6 litres of water and bring to boil.

3. First 1/2 hr use high fire to boil then later lower the heat and cook for 2 hours. The stock will be balance of 2.5 litres left.