This is the signature cooking stock of Tan Jia Cai, a style of cooking that greatly influenced Beijing cuisine. In my version, I’ve added carrots to impart a natural sweetness to the stock.
Blanch stewing hen, pork knuckles, chicken feet and duck in a pot of hot water for 3 minutes to remove any impurities. Drain and discard water.
Place water into a deep pot. Add blanched ingredients and everything else except carrot. Bring to, and keep at a steady boil for 1 hour 30 minutes over medium heat.