Paula Deen's recipe for standing rib roast, also known as prime rib roast, involves seasoning a roast with salt, pepper and garlic powder, and baking for about 90 minutes. The recipe is available at FoodNetwork.com.
Set out a 5-pound standing rib roast and allow it to rise to room temperature for at least one hour. Preheat an oven to 375 F. Make a house seasoning by blending 1 cup of salt with 1/4 cup of black pepper and 1/4 cup of garlic powder. Apply the house seasoning to the outside of the roast.
Set a wire rack into a pan big enough to fit the prime rib roast. Set the roast on the rack rib-side down and fat side up. Place the roast in the oven and roast for one hour. Turn the oven off, and leave the roast in the oven for 3 hours with the oven door shut. About 30 to 40 minutes before it is time to serve the roast, turn the oven back on at 375 F to reheat it.
It is important to keep the roast in the oven with the door completely shut from the time it is put in the oven until serving time.