And no roast really says “special occasion” quite like prime rib ... formula for perfect medium-rare prime rib is 13 to 18 minutes of cook time per pound at 325°. See below for a wider ...
“Prime rib roast is also called a standing ... then reduce heat to 325-350° F for the duration of the cooking time, approximately 12-15 minutes per pound. This ensures the meat in the center ...