Mushroom Jus

Take the roasting pan from the prime rib roast and drain off all but 2 Tbsp (30 mL) of the drippings. Over medium heat, sauté the shallots and mushrooms in the drippings until soft, about 8 minutes. Add the flour and cook over medium heat for 3 minutes, until the flour is worked into a paste. Add the stock gradually (whisking it in slowly to avoid lumps), stir in the thyme, and bring to a full