Marge's Bone Broth
1 head garlic, cloves separated and peeled 1 tablespoon whole black peppercorns 12 sprigs fresh thyme 2 bay leaves 2 cups parsley leaves 2 tablespoons red wine vinegar 3 carrots, coarsely chopped 3 onions, coarsely chopped 3 stalks celery, coarsely chopped 6 quarts water 7 pounds beef bones, such as oxtail, short ri… ⅓ cup dried mushrooms, such as porcini