Dry Aged Standing Rib Roast (Prime Rib)A pasture raised Angus cow, dry aged standing rib roast, also known as prime rib, is a premium cut of beef renowned for its exceptional flavor, tenderness, and marbling. Here's a description of this delectable culinary delight: Cut: The standing rib roast is taken from the primal rib section of the beef, comprising a section of ribs with the bone in. The rib bones are left intact, which adds flavor and juiciness during the cooking process. Appearance: