Pot roast in the instant pot 3-4 lb meat, such as pork shoulder or beef 1 cup beef broth Carrots Onion Garlic Rosemary Bay Leaf 1 tsp salt Cook 30 minutes per lb if frozen, 20 if not Natural release Gravy: 3 cup cooking liquid, boiling 1 cup water + 3 Tbsp flour, whisked Whisk into liquid until thick. More if needed. Season.