Bone broth

Place on the heat and bring to a boil. When a gray-brown foam forms on the surface of the broth, stir it with a spoon. Lower the temperature and boil for 4-8 hours. Always check that there is liquid covering the bones.

let it cool a little and pass the broth through a fine mesh strainer. The broth will be clean. When it reaches room temperature, put it in the refrigerator or freezer. If it has a lot of fat you will be able to remove it easily when it is cold. Freeze it in quarts or half liters, it will last you more than a month.