Turkey Gravy from Scratch - Traeger Grills

Ingredients

• 4 Pounds Turkey bones, chicken bones, chicken feet
• 2 Tablespoons olive oil, divided
• 1 Medium onion, quartered
• 2 celery stalks, cut into 2-inch pieces
• 2 Medium carrots, cut into 1-inch pieces
• 1 Tablespoon apple cider vinegar
• 1 Head garlic, halved crosswise
• 2 bay leaves
• 2 Tablespoons Black peppercorns
• 1 Bunch Fresh parsley, leaves and stems
• 2 Sprigs thyme
• As Needed cold water