Wash the knuckle, clean it well with a knife.
Fill it completely with water, put it on the gas. When it boils and boil for 10-15 minutes, strain, pour again. Cook until tender for 2.5-3 hours. During cooking, the knuckle should be completely immersed in water, then it will acquire a beautiful pink color. If the meat is not completely immersed in water, it will turn black. Keep an eye on this and add a little water during cooking.
Add coriander, peppercorns, allspice, bay leaf, onion, garlic, carrot to the broth.
Add salt to the broth. Leave the knuckle to cool in the broth, it will be more juicy. From the boiled knuckle, carefully remove the skin completely and also carefully cut off excess fat, trying not to cut the skin.