1 Place the roast (ribs down or fat side up) in roasting pan. 2  Sear the rib roast for 15 minutes at 450Â°F, then turn the oven to 325Â°F for the rest of the cooking time. 3  Every 1/2 hour, baste the cut ends of the roast with the fat accumulated in the roasting pan. Smear the cut ends of the roast with the butter. 2  Place the roast (ribs down or fat side up) in roasting pan. 3  Sear the rib roast for 15 minutes at 450Â°F, then turn the oven to 325Â°F for the rest of the cooking time. 4  Every 1/2 hour, baste the cut ends of the roast with the fat accumulated in the roasting pan.
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Advertising. 1  Classifieds: Visit DispatchClassifieds.com or call (614) 888-8888. 2  Phone hours: Monday-Wednesday, 8am-5pm; 3  Thursday, 8am-6pm; Friday, 8am-7pm. 4  National: Visit our Place an Ad page or call (614) 461-8870. 5  Phone hours: Weekdays, 8:30am-5pm. 6  Retail: Visit our Place an Ad page or call (614) 461-5500.