– 9 pounds prime rib roast

Prime rib roast, also known as standing rib roast or beef rib, is a premium cut of beef sourced from the rib section of the animal, specifically ribs 6–12 counting from the shoulder. This cut is prized for its abundant intramuscular fat (marbling) and substantial rib-eye muscle, which contribute to exceptional flavor and tenderness. Prime rib derives its name from the USDA Prime grade, the highest quality designation for beef based on marbling and age; however, the cut itself is also available in Choice and Select grades. The meat is characterized by a deep red color with visible fat distribution throughout, yielding a rich, beefy flavor with a juicy, tender texture when properly cooked.

The primary muscle in prime rib is the longissimus dorsi (rib-eye), which is consistently tender and well-marbled. A typical roast, such as the 9-pound example, typically comprises 4–7 ribs with the bone intact (standing rib) or boneless. Cooking this large, high-fat cut low and slow—typically via roasting—allows the interior fat to render while maintaining a browned, flavorful crust.

Prime rib roast is the quintessential special-occasion centerpiece in Western cuisine, particularly in American fine dining and upscale home entertaining. The large format roast is typically slow-roasted at moderate temperatures (300–325°F / 150–163°C) until reaching an internal temperature of 120–130°F (49–54°C) for medium-rare, then rested before slicing into thick steaks. It is commonly seasoned simply with kosher salt, freshly ground black pepper, and fresh herbs such as thyme, rosemary, and garlic, allowing the beef's natural flavor to predominate.

Prime rib is traditionally served with jus (meat drippings), Yorkshire pudding (in British presentations), horseradish cream, or béarnaise sauce. The large format makes it ideal for feasts and formal dinners where the roast is carved tableside. Leftovers are prized for cold slicing on sandwiches or reheating in gravy.