For an even more intense flavor, consider scoring the fat cap of the prime rib in a crosshatch pattern before applying the garlic, salt, and mustard. If you don't have fresh rosemary, you can substitute 1 tablespoon of dried rosemary, but fresh is highly recommended for its superior aroma and taste. Use a reliable meat thermometer to ensure accurate temperature readings. Oven temperatures can vary, so relying solely on time is not recommended. During the resting period, the internal temperature of the roast will continue to rise slightly (carryover cooking). Take this into account when determining your desired doneness. Serve with your favorite sides, such as roasted vegetables, mashed potatoes, or Yorkshire pudding, for a complete and memorable meal.
Callie Grimes
Jun 4, 2025This recipe was a lifesaver! My prime rib turned out perfectly – juicy and full of flavor.
Kory Bechtelar
Feb 24, 2025I added a few sprigs of thyme along with the rosemary, and it was amazing!
Fiona Jacobs
Dec 11, 2024The timing was spot on. My roast was perfectly medium-rare. Thank you!
Jaylan Willms
Nov 18, 2024I was a little intimidated to cook a prime rib, but this recipe made it so easy! Everyone loved it.
Gregorio Daugherty
Sep 30, 2024The rosemary and Dijon combination is genius! It added such a wonderful depth of flavor to the roast.