1. Place all bones and meat in a large stockpot, slow cooker, or pressure cooker. Add the vinegar, vegetables, bay leaves, salt, and peppercorns. Add enough filtered water to cover everything by 1-inch.
2. If using a stockpot, bring the liquid to a simmer over medium heat, then reduce the heat to low. Cover and let simmer for at least 12 hours, adding filtered water as needed so bones are always covered.
3. If using a slow cooker, cover and cook on low for at least 12 hours or up to 24 hours, adding filtered water only if needed so the bones are always covered.
4. If using a pressure cooker, using your cooker’s instructions, bring to full pressure. Reduce the heat to low, maintaining full pressure, and cook for three hours. Allow the pressure to naturally release.
5. When the broth is done, strain it through a fine-mesh strainer. Discard the bones and vegetables, and reserve the meat for another use. Or you can refrigerate or freeze the bones and reuse them to make another batch of broth.