Roast Prime Rib with Red Wine Sauce and Peppercorns

Why I Love This Recipe
My mom made this for Christmas dinner and it was fantastic!
Ingredients You'll Need
2 tsp crushed allspice
1 tsp rosemary crushed
3 tbsp pink peppercorns
3 tbsp green peppercorns
5 tbsp butter
2 tbsp flour
1 tbsp brown sugar
3 tbsp Dijon mustard
2 tsp salt
4-rib standing rib roast (8 lbs trimmed)
Red Wine Sauce (see recipe)
Directions
Let rib roast stand at room temp for 2 hours.
Combine first 9 ingredients and make into a paste.
Preheat oven to 500 degrees F.
Pat beef dry and in a roasting pan, roast the beef at 500 degrees ribs side down for 30 minutes. Move beef to a platter and use drippings for sauce.
Reduce oven temp to 350 degrees F and return beef to roasting pan, ribs side down and spread on the peppercorn paste. Roast beef 1 hour or until internal temperature reaches 135 degrees (for medium-rare).
Remove from oven and let beef stand for 20 minutes before carving. Serve with Red Wine Sauce.