Classic Prime Rib Roast (Oven)
Ingredients
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Prime rib roast (bone-in or boneless, 3–6 lbs)
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Salt
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Black pepper
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Garlic powder or fresh minced garlic
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Dried rosemary or thyme
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Olive oil or softened butter
Before You Start
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Take the roast out of the fridge 1–2 hours before cooking so it can come closer to room temperature. This helps it cook evenly.
Seasoning
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Pat the roast dry with paper towels.
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Rub all over with olive oil or butter.
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Generously season with salt, pepper, garlic, and herbs.
Cooking (Oven Method)
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Preheat oven to 450°F (230°C).
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Place the roast fat-side up on a rack in a roasting pan.
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Roast at 450°F for 20 minutes to get a nice crust.
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Lower the oven to 325°F (165°C) and continue cooking:
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Rare: ~12–13 minutes per pound
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Medium-rare: ~14–15 minutes per pound
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Medium: ~16–17 minutes per pound
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(If you have a thermometer, medium-rare is about 130–135°F / 54–57°C.)
Resting (Very Important!)
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Remove the roast from the oven and let it rest 20–30 minutes, loosely covered with foil.
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This keeps it juicy and makes slicing easier.
Slicing
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Slice against the grain into thick or thin slices, however you like.
If you want, I can:
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Adjust this for air fryer or grill
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Help you calculate exact cooking time for your roast size
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Suggest easy side dishes that go well with prime rib 😊