Mouthwatering Prime Rib Roast

As seen in: Thanksgiving Dinner Recipes: Create the Perfect Holiday Feast

This roast always turns out moist and tasty. Rub it all over with herbs and garlic, then let it sit out so it’s not cold. Crank up the heat at the start for that perfect outside. Take your time slow-cooking, check the temp as you go. Let it chill before carving. It just hits the spot for parties or chill nights in.

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Refreshed on Fri, 30 May 2025 17:00:34 GMT
A thick slice of pink prime rib with a crispy, browned crust sits on a black plate—looks super juicy. Save it
A thick slice of pink prime rib with a crispy, browned crust sits on a black plate—looks super juicy. | iamcooker.com

We're about to nail a gorgeous Prime Rib roast together. This is one of those special meals that gets even better with garlic and fresh herbs. Whether it's a big holiday or just a day you feel like treating yourself, I've got tricks to bring that restaurant-level prime rib right to your kitchen. And honestly, it's way simpler than it looks!

Why You'll Love This

No more wondering how folks get a roast this good. You can pull off a stunning main dish at home with basic stuff and easy moves. Skipping the steakhouse saves loads of cash, plus you get it exactly how you like. It totally wows for any celebration. The herbal garlic crust? Total crowd-pleaser—people will beg for more.

Stuff You Need

  • Optional: Want a bit of kick? Horseradish sauce is great on the side
  • Olive Oil: Use a quarter cup to turn the herbs and garlic into a paste
  • Garlic: Eight cloves, minced up for loads of flavor
  • Fresh Herbs: Chop up two teaspoons rosemary and one of thyme real fine
  • Black Pepper: About two teaspoons, fresh cracked tastes best
  • Sea Salt: Two to three tablespoons, so the meat's seasoned right through
  • Prime Rib: You'll want a five-pound bone-in cut—the bones make it taste even better

Simple Prime Rib

Let It Settle
Set the beef out for an hour before you cook. Salt it and leave at room temp.
Mix Up the Paste
Stir together olive oil, the chopped herbs and garlic, pepper, and rest of the salt until you get a spreadable mix.
Get Ready to Roast
Heat your oven up high—500°F. Dry off the roast and slather on that herb paste everywhere.
Roasting Time
Give it 15 minutes at 500°F first. Then turn the heat down to 325°F and keep it going until your thermometer says it’s done the way you like.
Let It Chill
Pull it out just before your target temp—5 to 10 degrees early. Rest it under foil for at least half an hour before you slice into it.
Juicy roast beef with an awesome crispy crust, herbs all on top, sitting on a black tray. Save it
Juicy roast beef with an awesome crispy crust, herbs all on top, sitting on a black tray. | iamcooker.com

Choosing the Cut

Go for a bone-in prime rib for top-notch taste. You can ask the butcher to slice the bones off and tie them back on—super helpful when you're carving. Try to get a roast with nice marbling—the little streaks of fat. Around the holidays, Costco is a solid spot for a good deal and high quality meat.

Nailing Doneness

It’s a breeze with two steps: Crank up the oven to 500°F for a fast roast at first—about 15 minutes for a killer crust—then take it down to 325°F for the rest. Count on roughly 10–12 minutes per pound if you want it rare, 13–14 for medium-rare, and 14–15 for medium. But here’s the deal—don’t just guess with the timer. Use a meat thermometer! That’s the real trick to nailing it every time.

Resting Matters

You really need to let the meat rest—don’t skip this! After roasting, cover it loosely with foil and walk away for 30 minutes. That's when the juices soak back into every bite instead of ending up on your cutting board. Trust me, waiting is worth it. Use this break to whip up gravy or finish your side dishes if you want.

Serving Up

When it’s go-time, take off any string and pull away the bones. Slice across the grain, about half an inch thick. Tip any pan juices over your slices so nothing goes to waste. Pair it with fluffy mashed potatoes, buttery rolls or whatever you like. If you’re feeling fancy, put horseradish out and pile everything up on a big platter. Everyone’s going to be wowed!

Leftover How-To

Wrap extra prime rib tight and stash it in the fridge for up to 4 days. Don’t cut it all at once—leaving big chunks keeps it nice and juicy. For reheating, pop it in a 250°F oven and warm gently, just until it’s hot. Skip the microwave if you want that pretty pink color to stick around. Leftovers? They make killer sandwiches tomorrow!

Rib roast looking juicy on a gray plate, sprinkled with fresh thyme. Save it
Rib roast looking juicy on a gray plate, sprinkled with fresh thyme. | iamcooker.com

Common Questions

→ How do I get the prime rib ready ahead of time, and what's the easiest way to do it?

Go ahead and season your meat with salt, pepper, and herbs the night before. Toss it in the fridge uncovered on a wire rack—this boosts flavor. Take it out of the fridge a couple hours before you cook so it warms up evenly.

→ How do I reheat my leftover prime rib so it isn’t dry and sad?

Best move: flash those slices in a hot skillet for about 20 seconds on each side. Or, pop them in foil with some au jus, and heat in a 250°F oven until nice and warm—aim for about 120°F inside.

→ I only have dried herbs—how do I swap them in and still keep flavors popping?

Go for a teaspoon of dried to replace one tablespoon fresh. Toast or crush them first so they wake up. Add fresh garlic or ground pepper if you can for that extra kick.

→ Which sides really make this prime rib shine?

It’s awesome with mashed spuds, Yorkshire pudding, or roasted asparagus for the classic vibe. Don’t forget a bit of au jus or horseradish cream. For something lighter, add a simple salad or those oven-roasted veggies you like.

Final Thoughts

On the hunt for mains that hit the spot? Check out these picks:

  1. Rosemary Garlic Lamb Leg – Same garlicky goodness, just a twist with lamb.
  2. Garlic-Herb Tri-Tip – Won’t bust your budget but feels fancy.
  3. Slow-Roasted Brisket – Perfect for when you want something that falls apart.
  4. Standing Rib Roast – Got a crowd? This one feeds plenty.
  5. Beef Tenderloin with Herb Crust – All the flavors, but ideal for a cozy night.

Mouthwatering Prime Rib Roast

Whip up steakhouse-quality prime rib in your own kitchen. It’s beginner-friendly but totally impressive.

Preparation
10 Mins
Cooking Duration
105 Mins
Complete Duration
115 Mins
By: sofia


Complexity: Moderate

Origin: American

Output: 10 Portions (1 whole prime rib)

Diet Types: Reduced Carbohydrate, No Gluten, No Dairy Products

What You'll Need

01 5 pounds of prime rib (double spices if it's a bigger cut).
02 Coarse sea salt.
03 1/4 cup of olive oil.
04 8 minced garlic cloves.
05 2 teaspoons of freshly cracked black pepper.
06 1 teaspoon thyme leaves, freshly chopped.
07 2 teaspoons chopped rosemary.
08 Optional: Horseradish for dipping.

Preparation Steps

01 Step

Bring the meat out an hour before cooking. Sprinkle salt all over and let it sit, loosely wrapped.

02 Step

Pick the middle rack for your oven and preheat to 500°F (260°C).

03 Step

Combine garlic, pepper, oil, rosemary, thyme, and 1 1/2 tsp salt in a bowl.

04 Step

Dry the surface of the roast with paper towels. Rub the spice mixture all over.

05 Step

Place the bone-in roast bone-side down in a cast iron pan. Use a rack for boneless cuts.

06 Step

Bake at 500°F for 15 minutes to get a nice crust.

07 Step

Drop the heat to 325°F (165°C) and bake to your preferred doneness. Use a thermometer: for Rare: 120°F (49°C), 10-12 minutes per pound; Medium rare: 130°F (54°C), 13-14 minutes per pound; Medium: 140°F (60°C), 14-15 minutes per pound; Medium well: 150°F (66°C).

08 Step

Stop cooking at 5-10 degrees below your goal temp. The roast will finish as it rests.

09 Step

Cover loosely with foil and let sit for about 30 minutes.

10 Step

Cut slices against the grain, about 1/2-inch thick. Add horseradish on the side if you want.

Additional Tips

  1. If it's bone-in, get the butcher to slice the bones and tie them back on—makes carving easier.
  2. Without bones, you'll need a rack. An Instant Pot rack fits fine in cast iron pans.
  3. The meat continues cooking once it's resting, so stop early.
  4. Leftovers are perfect for sandwiches, especially with horseradish sauce.

Required Equipment

  • A heavy cast iron pan.
  • A reliable meat thermometer.
  • Tin foil for resting.

Nutritional Information (Each Portion)

Consider these values as estimates rather than definitive health guidance.
  • Energy: 729
  • Fat Content: 66 g
  • Carbohydrates: 1 g
  • Protein Content: 31 g