Pepper-Crusted Prime Rib Roast With Mushroom-Armagnac Sauce Recipe

Ingredients For Pepper-Crusted Prime Rib Roast With Mushroom-Armagnac Sauce Recipe

• 1.5 tablespoon Szechuan peppercorns
• 1.5 tablespoon Black peppercorns
• 1.5 tablespoon White peppercorns
• 6 pound Prime rib roast
• Salt
• 1 tablespoon Vegetable oil
• 1 stick Unsalted butter
• 6 sprig Thyme
• 4 Bay leaves
• 4 sprig Marjoram or oregano
• 5 Garlic Cloves
• 4 Large shallots
• 2 ounce Dried Porcini Mushrooms
• 1.5 cup Boiling water
• 2 tablespoon Extra virgin olive oil
• 0.75 pound White mushrooms
• 2 Medium shallots
• 2 Garlic Cloves
• 3 sprig Thyme
• 1 cup Armagnac
• 0.5 cup Dry white wine
• 2 cup Low Sodium Beef Broth
• 2 tablespoon Cold Unsalted Butter