The bone was still frozen when I placed it into a pot with coarsely chopped veggies.
Bring to a boil,
large ham bone, preferable with some meat still attached
8+ cups water to almost cover
2 large carrot, sliced into large chunks
2 large onion, quartered
4 stalks celery, coarsely chopped
1/2 cup fresh parsley
1 bay leaf
No need to add salt
Gently simmer ham bone with carrot, celery, onion, parsley, bay leaf, peppercorns, and water in a large pot for 2 hours. Let cool and strain, pulling off usable meat and discarding the solids.