Prime Rib Roast with Madeira Green Peppercorn Sauce

Instructions

1. 1

   With the rack in the middle position, preheat the oven to 500°F (260°C).

2. 2

   Place the vegetables and the oil in the centre of a large double-layer sheet of foil. Season with salt and pepper. Close the papillote tightly. Set aside.

3. 3

   In a bowl, combine the blue cheese (if using), walnuts, parsley and chives. Refrigerate until ready to serve.