1. Blanch old pigeon, drain, check if there is any fine hair on skin, pluck them out if there is any.
2. Scrub both inside and outside of pork stomach with salt and corn starch, until all the bad odour is removed. Stuff the pork stomach with the pigeon, then blanch, drain, trim the fat and yellowish lining with scissors.
3. Skin the chopped chicken, then blanch together with the lean pork, pork bone and chicken feet to remove the scum, then drain and rinse.
4. Dry roast white peppercorns in a wok, keep stirring with chopsticks, roast them until you hear a crackling sound, transfer to a bowl.
5. Boil a pot of water, tip the roasted white peppercorns, then add the pork stomach, lean pork, pork bone, chopped chicken and chicken feet, cover the lid, turn to high heat and bring to a boil, then turn to medium heat and boil for 1 hr 45 min to 2 hrs. Season with salt and serve.