Part 1: 7 bone Rib Primal, Endless Options: Prime Rib Roasts Ribeyes Starting with a full 7-bone rib primal, this is how I turn one cut into a full lineup. I break it down into two 2-bone prime rib roasts, tie the bones back on for flavor and presentation, and cut the rest into five thick ribeye steaks. Nothing wasted, everything intentional. This is the advantage of buying whole. You control the thickness, the portions, and the value. Prime rib for slow cooks and holidays, ribeyes for the grill