Herb-Rubbed Rib Roast

Directions

1. 1
   Heat oven to 325°F.
2. 2
   Place beef, fat side up, on rack in shallow roasting pan. Rub garlic halves over beef.
3. 3
   Spread 1/4 cup mustard over top and sides of beef.
4. 4
   Mix remaining Rib Roast ingredients except oil; stir in oil.
5. 5
   Spread herb mixture over top and sides of beef.
6. 6
   Insert meat thermometer so tip is in center of thickest part of beef and does not touch bone. Roast uncovered 1 1/2 to 2 hours for medium doneness (155°F).
7. 7
   Meanwhile, mix all Peppery Horseradish sauce ingredients. Cover and refrigerate at least 1 hour to blend flavors.
8. 8
   Cover beef loosely with foil tent and let stand about 15 minutes before carving. (Temperature will rise about 5°.)
9. 9
   Serve with Peppery Horseradish Sauce.