Mrs. Dash Seasoning
Prime rib roast
Preheat oven to 500 degrees F.
Rub seasonings into the prime rib. For medium rare, cook 5 minutes per pound. For medium, cook 7 minutes per pound.
Turn oven off and do not open oven door for whatever time remains of 2 hours (total cooking time).
Source: Monsour's Restaurant - Vicksburg, Mississippi