Here is a simple recipe for Sulze (German) or Souse (PA-Dutch):

Everyone has their own recipe, but the only required ingredient is the ham hocks. Add the rest of the ingredients to taste. It is also sometimes made with pickled pig's feet (souse).

Place 4 ham hocks in a crock pot with chopped onions, peppercorns, minced garlic and cider vinegar (to taste). You can also add some juniper berries and/or allspice.

Cover with water and cook in crock pot on high for 18-24 hours (or simmer on stove for 12 hours or so). Strain the broth into a bowl (pour off the fat) and allow the meat to cool. Pull out the bones and grizzle and chop the remaining meat. Add meat back to the broth and pour into a loaf pan. Place in refrigerator to set.

When fully set (12-24 hours), unmold and slice to serve.

NOTE: Instead of pouring off the fat, you can allow it to harden on the top of the loaf and peel it off before unmolding.