Prime Rib In A Roaster Oven

How To Cook A Prime Rib In A Roaster Oven? | Good Cook

Notice: Trying to access array offset on value of type bool in /home/bamboowok/domains/ on line 232

Notice: Undefined offset: 1 in /home/bamboowok/domains/ on line 254

Notice: Undefined offset: 1 in /home/bamboowok/domains/ on line 254

Notice: Undefined variable: current_link_box in /home/bamboowok/domains/ on line 271

Notice: Undefined variable: final_html in /home/bamboowok/domains/ on line 338

Roasting prime rib has long been a celebrated tradition for holidays and special gatherings. The tried and true method involves slow-roasting the roast in the oven for several hours. However, this poses some challenges. The prime rib takes up valuable oven space and requires frequent monitoring. Further, the low oven temperature leads to an extended cooking time.

But there is an easier, faster way – using a roaster oven. A roaster oven allows you to perfectly cook prime rib with incredible speed and convenience. The contained environment seals in moisture and flavor. By preheating to a higher temp, you can kickstart the maillard reaction for a flavorful crust. The results are phenomenal – tender, juicy meat with a crispy exterior.

This guide will walk through how to leverage a prime rib in a roaster oven to make holiday-worthy prime rib with little effort. After trying this foolproof technique, you may never go back to the traditional oven method again.

Why Choose a Roaster Oven?

Why Choose a Roaster Oven?

During hectic holidays like Christmas or Thanksgiving, oven real estate is prime territory. Roasting the prime rib liberates your main oven for sides, desserts, or other entrées. No need for oven tetris.

Further, a roaster oven significantly reduces cooking time. The smaller enclosed space facilitates quicker heat transfer. Expect your prime rib to finish in about half the time of a traditional low-and-slow oven braise.

Finally, maneuvering a 10+ pound roast in and out of a low oven can get messy. The compact roaster oven allows you to easily place, flip, and remove your masterpiece. No wrestling with a bulky pan required.

In summary, using a roaster oven results in convenience, faster cooking, and easier handling – with zero compromise on taste. The benefits are undeniable.

Ingredients & Preparation

To feed a crowd, you will want a sizable prime rib roast. Target 10-12 pounds to serve 5-6 people comfortably. Have the butcher prepare a 4 bone standing rib roast for you.

For ingredients, you will need:

  • Prime rib roast, bone-in (10-12 lbs for 5-6 servings)
  • Unsalted butter, softened (1 cup)
  • Sea salt and cracked black pepper
  • Optional seasonings: rosemary, thyme, sage, garlic powder

The butter provides a rich vehicle to distribute spices and herbs over the meat. Resist salted butter so you can better control seasoning.

For preparation, ask the butcher to remove the chine bone and slice between the rib bones. This helps the roast cook more evenly. Then have them tie it back together into a neat package. Finally, bring the roast to room temperature before cooking to allow for even heating.

Cooking Instructions

Follow these simple steps for foolproof prime rib using your roaster oven:

  1. Preheat the roaster oven to 450°F, or the highest temperature setting.
  2. In a bowl, combine 1 cup softened unsalted butter with seasonings of your choice. Mix thoroughly to distribute the flavors.
  3. Generously coat the roast with the seasoned butter, forcing it into crevices and openings. Refrigerate for 24 hours to allow the flavors to permeate the meat.
  4. Remove the roast from the fridge and let it come to room temperature, about 2 hours.
  5. Place the roast bone-side down in the preheated roaster oven. Cook for 25-30 minutes at 450°F to achieve a flavorful crust.
  6. Without opening the lid, reduce heat to 350°F. Continue roasting approximately 10-12 minutes per pound, until the internal temperature reaches 120-125°F for rare or 130-135°F for medium-rare doneness. Use an instant-read thermometer to monitor.

Crucial Tip: Avoid lifting the lid during the cooking process. This allows the interior to remain hot and prevents the meat from drying out.

  • When the roast reaches the target temp, remove it from the roaster and tent loosely with foil. Let rest for 15-30 minutes before slicing.

Slicing & Serving

After the roast has rested, it’s time to carve this masterpiece. First, snip and remove any kitchen twine tied around the roast. Use the bones as a handle to easily maneuver the meat.

Remember to slice against the grain for maximum tenderness. Cut into the roast at a slight angle following the muscle lines. Serve with traditional pairings like Yorkshire pudding, horseradish sauce, or creamy mashed potatoes.

Beyond the Basics


If the top or bottom seems overcooked or dried out, try adjusting the rack position to bring the meat closer to the center. Use a meat thermometer to determine doneness instead of time.


Always use a thermometer to verify safe internal temperatures. Let your roast rest adequately to allow juices to redistribute. Maintain strict sanitation when handling raw meat.


For smaller gatherings, substitute a 3-4 bone prime rib roast or individual bone-in ribeye steaks. Get creative with the spice rub using rosemary, thyme, sage or other aromatic herbs.


From reduced cook times to easier handling, roaster ovens offer an ideal method for cooking prime rib. The enclosed environment and higher heat produce a tender, flavorful interior with a browned, crusty exterior. Implement the techniques in this guide for restaurant-worthy results. We hope we’ve convinced you to take prime rib out of the oven and into a roaster this holiday season.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *