Remove the prime rib from the fridge at least 1–2 hours before cooking to allow even roasting.
Preheat your oven to 450°F (230°C).
Season the Prime Rib
Pat the roast dry with paper towels. Rub it all over with olive oil, then sprinkle with salt, pepper, garlic powder, onion powder, rosemary, and paprika.
Place fat-side up on a rack in a roasting pan.
Roast High & Then Low
Roast at 450°F for 20 minutes to develop a crust.
Reduce heat to 325°F (165°C) and continue roasting for about 1½ to 2 hours, or until internal temperature reaches:
120°F (49°C) for rare
130°F (54°C) for medium rare
140°F (60°C) for medium
Use a meat thermometer for accuracy.
Make the Pepper Parm Crust
While the roast is cooking, mix together:
Butter
Parmesan
Black pepper
Garlic
Dijon mustard (if using)
Set aside at room temp.
Add the Crust
About 15 minutes before the roast is finished, gently press the Pepper-Parmesan mixture onto the top and sides of the roast.
Return to the oven and broil on low for 2–3 minutes, just until the crust is bubbling and golden — watch closely so it doesn’t burn.
Rest and Carve
Remove the roast and let it rest at least 30 minutes, tented with foil, before slicing.
This step is crucial — it lets the juices redistribute, making the meat tender and moist.
Slice and Serve
Slice into thick, juicy cuts. Serve with:
Roasted garlic mashed potatoes
Horseradish cream or au jus
Roasted vegetables
Warm dinner rolls or Yorkshire pudding
Garnish with fresh herbs or extra shaved Parmesan if desired.
Optional Twists
Add crushed peppercorns for a stronger kick
Swap in Asiago or Pecorino for the Parmesan
Use bone-in rib roast for deeper flavor and better presentation
Add a splash of white wine or broth to the pan for a quick jus
Final Thoughts
This Pepper Parm Prime Rib is all about balance: the sharp bite of cracked pepper, the umami of Parmesan, and the richness of perfectly roasted beef. It’s a dinner worth celebrating — bold, beautiful, and easier than it looks.
Perfect for holidays. Perfect for impressing. Perfectly unforgettable