This easy, juicy prime rib roast recipe transforms a small bone-in rib roast—typically weighing 3 to 4 pounds—into a succulent, buttery, and perfectly medium-rare masterpiece that’s sure to impress.
Ideal for an intimate special occasion or cozy holiday celebration, this roast comfortably serves two to four people.
How to Cook a Perfect Small Prime Rib Roast (Juicy Medium-Rare Every Time)
Time Breakdown for medium rare roast
- 1. Preheat oven to 500°F.
- 2. Place the seasoned roast in oven, after 15 minutes lower temperature to 325°F.
- 3. Remove from oven once roast reaches 138°F in the thickest part (for juicy medium-rare after resting).
- 4. Temperature will rise approximately 10°F while resting.
- 3-pound roast: 50–70 minutes, start checking temperature after 45 minutes
- 3.5-pound roast: 60–80 minutes, start checking temperature after 55 minutes
- 4-pound roast: 70–90 minutes, start checking temperature after 55 minutes
General guideline: Roast about 15–18 minutes per pound at 325°F.

Key Tips for Accuracy
- Always use a meat thermometer — time is just an estimate. Oven differences, roast shape (taller. wider), and exact starting temperature affect timing.
- Let the roast come to room temperature (30-60 minutes on the counter) for more even and predictable cooking.
- Bone-in roasts take slightly longer per pound than boneless.
- Perfect size for 2-4 people (¾–1 lb per person with bone).Â
How to Carve Rib Roast
For tips on how to carve the roast watch this short YouTube video from Omaha Steaks
Top Classic Sides
- 1. Yorkshire Pudding – The #1 traditional partner (crispy, airy popovers baked in beef drippings)
- 2. Creamy Horseradish Sauce (or horseradish cream) – Sharp, creamy, cuts through the richness
- 3. Au Jus – Simple pan-dripping sauce for dipping every bite
- 4. Creamed Spinach – Velvety, garlicky, steakhouse staple
- 5. Roasted Garlic Mashed Potatoes – Buttery and indulgent
- 6. Roasted or Steamed Asparagus with hollandaise or just lemon-butter
- 7. Glazed Carrots (honey or brown-sugar glazed)
Try some of our other recipes:
Garlic Mashed Potatoes
Balsamic Honey Glazed Roasted Carrots
If you like our Prime Rib Roast recipe, please let us know by commenting or star rating it. We always appreciate hearing from you. Plus the star ratings helps us develop our website through google search. Thanks ~ Karol

Easy Foolproof Prime Rib Roast – Serves 2-4
Ingredients
- 1 3-4 lbs bone-in rib roast
- 1-1 1/4 teaspoons salt
- freshly ground pepper to taste
- Fresh herbs like rosemary or thyme and minced garlic, if desired
Instructions
- Remove the roast from the refrigerator and let it come to room temperature. 30-60 minutes.
- Pat the roast dry with paper towels. Rub all over the the salt and black pepper. If using herbs/garlic, mince and mix into a past along with a little oil and rub onto the roast.
- Adjust your oven rack to the middle position, Preheat oven to 500 degrees F.
- Place the roast bone-side down in a roasting pan. Place into the hot oven and roast for 15 minutes. Then turn the heat done to 325 degrees F. Cook until the internal temperature reaches 138 degrees for medium-rare. See time chart in NOTES.
- Remove from oven once it reaches 138 degrees. Tent loosely with foil and let rest for 10-15 minutes. The temperature will rise as it rests, giving you perfect juicy medium-rare slices.
To Slice
- First cut the bones from the roast and discard. Then slice the meat against the grain into medium-thick pieces. Serve with pan juices (au jus), horseradish cream, or your favorite sides.For tips on how to carve the roast watch this short YouTube video from Omaha Steaks
Notes
Cooking Time:
- 3-pound roast: 50–70 minutes, start checking temperature after 45 minutes
- 3.5-pound roast: 60–80 minutes, start checking temperature after 55 minutes
- 4-pound roast: 70–90 minutes, start checking temperature after 55 minutes
Â
Key Tips for Accuracy
- Always use a meat thermometer — time is just an estimate. Oven differences, roast shape (taller. wider), and exact starting temperature affect timing.
- Let the roast come to room temperature (30-60 minutes on the counter) for more even and predictable cooking.
- Bone-in roasts take slightly longer per pound than boneless.
- Perfect size for 2–4 people (¾–1 lb per person with bone).Â

This was the perfect size for 2-4 people. Very easy to make!!