The Ultimate Guide to Lawry’s Prime Rib Roast

My earliest memory of a truly special occasion wasn’t marked by presents or decorations, but by the aroma that filled my grandmother’s kitchen every Christmas Eve. It was the unmistakable scent of a slowly roasting prime rib, heavily seasoned and promising a feast of epic proportions. She swore by a technique she learned decades ago, one that involved a bed of rock salt and, of course, Lawry’s Seasoned Salt. The anticipation was almost unbearable, and the first bite, tender and flavorful, was always a moment of pure joy. This recipe brings back those cherished memories every time.

Recipe Overview

• Prep Time: 15 minutes
• Cook Time: 1 hour 20 minutes to 2 hours (depending on desired doneness and roast size)
• Total Time: 1 hour 35 minutes to 2 hours 15 minutes (plus 20 minutes resting)
• Servings: 8
• Yield: 8 servings
• Dietary Type: Not specified (naturally gluten-free and dairy-free)

Ingredients

• 1 (4 lb) standing rib roast (4-rib)
• Lawry’s Seasoned Salt
• 1 (5 lb) bag rock salt

Equipment Needed

• Heavy roasting pan
• Wire roasting rack
• Meat thermometer
• Sharp carving knife

Instructions

1. Generously sprinkle the fatty cap of the roast with Lawry’s Seasoned Salt to your taste. Don’t be shy, as this is the main source of seasoning for the entire roast.
2. In a heavy roasting pan, spread the rock salt evenly over the bottom. The rock salt creates a dry-heat environment that helps to cook the roast evenly and prevents the bottom from burning.
3. Place the wire roasting rack on top of the salt.
4. Place the roast on the rack, fatty side up. It’s crucial that no salt actually touches the beef, as this will make it excessively salty. The rack elevates the roast, allowing for even air circulation.
5. Insert a meat thermometer into the thickest part of the meat, making sure it does not touch a bone. Accurate temperature readings are essential for achieving your desired level of doneness.
6. Roast in a preheated 350 degrees F oven until the thermometer registers 130 degrees F for rare, 140 degrees F for medium, or approximately 20 to 25 minutes per pound. Keep a close eye on the temperature, as cooking times can vary depending on your oven and the shape of the roast.
7. Remove from oven and let stand for 20 minutes before carving. This resting period allows the juices to redistribute throughout the roast, resulting in a more tender and flavorful final product. Tent loosely with foil to keep warm but not continue cooking.
8. Using a sharp carving knife, slice the meat across the grain for serving. Slicing against the grain shortens the muscle fibers, making the meat easier to chew.
9. Discard the rock salt after use.
10. Serve with Lawry’s Whipped Cream Horseradish. (See separate recipe for Lawry’s Whipped Cream Horseradish.)

Expert Tips & Tricks

• Dry Brining: For an even more flavorful roast, consider dry brining it 24-48 hours in advance. Simply sprinkle the roast liberally with Lawry’s Seasoned Salt and place it uncovered on a wire rack in the refrigerator. This allows the salt to penetrate deep into the meat, resulting in a more juicy and seasoned final product.
• Basting (Optional): While not strictly necessary, you can baste the roast with its own juices every 30 minutes or so for extra flavor and moisture.
• Doneness Levels: The cooking times provided are guidelines. Use a reliable meat thermometer for best results. Here’s a quick reference guide:
  • Rare: 130-135°F
  • Medium-Rare: 135-140°F
  • Medium: 140-145°F
  • Medium-Well: 145-155°F
  • Well-Done: 155°F+ (not recommended)
• Oven Calibration: Make sure your oven is properly calibrated for accurate temperature readings. An oven thermometer can help.
• Salt Quantity: While the recipe calls for a 5-lb bag of rock salt, you might not use the entire amount. The goal is to create an even layer on the bottom of the roasting pan.

Serving & Storage Suggestions

Serve your perfectly roasted prime rib immediately, sliced against the grain, with a generous dollop of Lawry’s Whipped Cream Horseradish. It pairs beautifully with classic sides like roasted potatoes, Yorkshire pudding, creamed spinach, and a vibrant green salad.

Leftover prime rib can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, gently warm in a low oven (250°F) with a little beef broth or au jus to prevent drying. You can also slice the cold prime rib thinly and use it for sandwiches or in salads. For longer storage, freeze slices of prime rib in a single layer on a baking sheet, then transfer to a freezer-safe bag or container. Frozen prime rib can last for up to 2-3 months. Thaw completely in the refrigerator before reheating.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	755 kcal	N/A
Total Fat	66.6 g	102%
Saturated Fat	27.5 g	137%
Cholesterol	163.3 mg	54%
Sodium	120.2 mg	5%
Total Carbohydrate	0 g	0%
Dietary Fiber	0 g	0%
Sugars	0 g	0%
Protein	36.4 g	72%

Note: Nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Herbed Crust: Before roasting, rub the prime rib with a mixture of fresh herbs like rosemary, thyme, and garlic for added flavor.
• Garlic Studded: Make small incisions in the roast and insert slivers of garlic throughout for a pungent and aromatic flavor.
• Au Jus: Save the pan drippings after roasting to create a delicious au jus for dipping. Simply strain the drippings, skim off the fat, and simmer with beef broth until slightly thickened.
• Different Cuts: While this recipe is specifically for a standing rib roast, you can adapt it for other cuts of beef, such as a boneless ribeye roast. Adjust the cooking time accordingly.

FAQs (Frequently Asked Questions)

Q: Can I use regular table salt instead of rock salt?
A: No, rock salt is crucial for this recipe. Table salt is too fine and will likely seep into the meat, making it overly salty.

Q: How do I know when the prime rib is done?
A: A meat thermometer is the most reliable way to check for doneness. Insert it into the thickest part of the roast, avoiding bone.

Q: What if my roast is smaller or larger than 4 lbs?
A: Adjust the cooking time accordingly, aiming for 20-25 minutes per pound. Monitor the internal temperature closely.

Q: Can I cook the prime rib at a higher temperature?
A: While some recipes call for a higher initial temperature to sear the roast, this recipe relies on a consistent temperature for even cooking.

Q: What can I do with the leftover bones?
A: Save the bones to make a rich and flavorful beef stock or broth.

Final Thoughts

Making Lawry’s Prime Rib Roast is more than just following a recipe; it’s about creating an experience, a tradition, and a memory. This method, passed down and perfected, consistently delivers a perfectly cooked and incredibly flavorful roast. Don’t be intimidated – with a little patience and attention to detail, you can achieve restaurant-quality results in your own kitchen. Gather your loved ones, prepare this stunning centerpiece, and enjoy the magic that a truly exceptional prime rib roast can bring to your table. I encourage you to try this recipe and share your experience. Pair it with a robust Cabernet Sauvignon for the ultimate culinary indulgence.