3 mustard pork chops without Recipes

chopped onion (1 large), unsalted butter, garlic cloves, finely chopped, chopped fresh thyme or 1 tsp dried, crumbled, kosher salt or 1 1/2 tsp table salt, black peppercorns, whole allspice or 1/4 tsp ground allspice, freshly grated nutmeg, turkish or 1/2 california bay leaf, heavy cream, eggs, cognac or other brandy, chicken livers, trimmed, ground fatty pork shoulder or half lean pork and half fresh pork fatback (without rind), ground fatty veal (preferably veal breast), baked ham (1/2-inch slice), cut into 1/2-inch cubes, bacon slices (about 3/4 lb), accompaniments: cornichons ; mustard; bread or crackers