Bone Broth

Ingredients

• 1 1/2 pounds bone-in beef short rib
• 2 1/2 pounds beef shank or oxtail
• 2 pounds beef knucklebones or neck bones, or a combination of both (or add 1 more pound beef shank or oxtail)
• 2 tablespoons extra-virgin olive oil
• 2 tablespoons tomato paste
• 1/4 cup apple cider vinegar
• 3 carrots, peeled and coarsely chopped
• 3 celery stalks, coarsely chopped
• 2 onions, halved and peeled
• 1 (14.5-ounce) can tomatoes (they can be whole, peeled or diced)
• 1 head garlic, excess skins removed, top chopped off to expose the cloves
• 2 bay leaves
• 1 bunch fresh flat-leaf parsley
• 1/2 bunch fresh thyme
• 1/4 ounce dried shiitake mushrooms
• 1 tablespoon black peppercorns