Contents
Prep time20 minutes (plus 12–24 hours for dry-brining)
Cook timeApproximately 1.5 to 2 hours (varies by size)
Total time~2.5 hours active (plus dry-brining)
Servings6–8 servings
Equipment
- Heavy roasting pan with a fitted wire rack
- Meat thermometer (an instant-read or oven-safe digital probe thermometer)
- Kitchen twine
- Small mixing bowl
- Sharp carving knife and cutting board with juice groove
Ingredients
Main Roast:
- Standing Rib Roast: 3-bone to 4-bone prime rib roast (approx. 6–8 lbs / 2.7–3.6 kg), bone-in (ask your butcher to loosen the bones and tie them back on)
- Salt for Dry-Brining: 1.5 to 2 tablespoons coarse kosher salt
Garlic Herb Butter Crust:
- Unsalted Butter: 1/2 cup (1 stick), softened to room temperature
- Garlic: 6–8 cloves, finely minced or grated
- Fresh Rosemary: 2 tablespoons, finely chopped
- Fresh Thyme: 2 tablespoons, finely chopped
- Coarse Black Pepper: 1 tablespoon freshly cracked black pepper
- Worcestershire Sauce: 1 tablespoon
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Instructions
Step 1: Dry-Brine for Maximum Flavor (12–24 Hours Ahead)
- Pat the rib roast completely dry with paper towels.
- Season generously on all sides with the coarse kosher salt.
- Place the roast on a wire rack set inside a rimmed baking sheet and store in the refrigerator uncovered for 12 to 24 hours. This dry-brining process seasons the meat deeply and dries out the exterior skin for a crispy crust.
Step 2: Bring to Room Temperature
- Remove the prime rib from the refrigerator 2 hours before cooking . Letting the meat lose its chill ensures it cooks evenly from edge to center.
Step 3: Herb Butter Application & Preheating
- Preheat your oven to 450°F (230°C) .
- In a small bowl, combine the softened butter, minced garlic, chopped rosemary, thyme, cracked black pepper, and Worcestershire sauce until a smooth paste forms.
- Slather the garlic-herb butter evenly over the entire surface of the roast.
Step 4: High-Heat Roast (The Sear)
- Place the roast bone-side down on a wire rack inside your roasting pan.
- Roast in the preheated oven at 450°F (230°C) for 15 to 20 minutes to brown the exterior and build a savory crust.
Step 5: Slow Bake
- Reduce the oven temperature to 325°F (165°C) without opening the door for long.
- Continue roasting until an instant-read meat thermometer inserted into the thickest part of the meat (away from the bone) reads your desired doneness target (remember, temperature rises 5–10°F while resting): Rare: Pull at 115°F – 120°F (Final rest temp: 125°F)
- Medium-Rare (Recommended): Pull at 120°F – 125°F (Final rest temp: 130°F–135°F)
- Medium: Pull at 130°F – 135°F (Final rest temp: 140°F)
- Rule of Thumb: Expect roughly 12 to 15 minutes per pound at 325°F.
Step 6: Rest and Carve
- Transfer the roast to a warm cutting board, tent loosely with aluminum foil, and let it rest for at least 30 minutes . Resting allows the juices to redistribute throughout the meat so they don’t run out when carved.
- Cut the kitchen twine, remove the bones, and slice the prime rib against the grain into thick steaks.
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Nutrition
Calories: ~680 kcal · Protein: ~48 g · Fat: ~52 g · Carbohydrates: ~1 g · Saturated Fat: ~23 g · Fiber: ~0 g · Sugar: 0 g · Sodium: ~620 mg
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