Premium Prime Rib Roast vs Steaks: Tested Aged Beef… Kitchen Insights! We were impressed by the Kansas City Steak Company’s 4.5–5 lb boneless, tender prime rib, aged up to 28 days for maximum flavor. The title “premium” didn’t disappoint. Slicing into thick, juicy cuts, we marveled at the rich, velvety texture—a clear winner over store-bought alternatives. Our test kitchen paired it with the included cooking instructions, and the results were flawless. The steaks (trimmed from the roast) retained a perfect crust while remaining juicy inside, proving this cut’s versatility. whether skewering for grilling or pan-searing indoors, the beef delivered restaurant-quality eats. Our only note? The aged flavor shines brightest when slow-roasted. This roast turned dinner into an event, and we’d recommend it for both casual weeknights and special celebrations. A true crowd-pleaser.