The Secret Behind Martha Stewart's Foolproof Holiday Prime Rib Roast
A successful roast starts at the butcher block days before the oven is preheated. Stewart consistently advocates for a bone-in ribeye roast, commonly labeled a standing rib roast. The ribs serve two functional purposes. They form a natural roasting rack that keeps the muscle suspended above rendered fat, and the bones insulate the meat, slowing thermal transfer and preventing dry, gray edges.
When ordering, request a cut from the small end, ribs 10 through 12. This section sits closest to the short loin and contains a larger proportion of the tender longissimus dorsi and a tighter cap of flavorful spinalis dorsi. A prime roast should show abundant, fine white flecks of intramuscular marbling rather than large chunks of peripheral fat. Ask your butcher to "cradle" the roast: slice the meat away from the bones and tie it back on with butcher's twine. This preserves the thermal protection of the bone while guaranteeing effortless carving later.