Prime Rib
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Prime Rib Roast
∙7-10 pounds (3-4.5 kg) boneless prime rib roast
∙Coarse kosher salt (you’ll need a lot)
∙Cracked black pepper (approx. 6-9 T, depending on roast size)
∙10-12 T neutral oil (e.g., peanut oil) or beef fat
Preparation:
1. Score the fat cap of the prime rib about ⅛” (0.5 cm) deep in a crosshatch pattern.
2. Season all sides of the roast very generously with coarse kosher salt and cracked black pepper. Use at least 2-3 four-finger pinches of salt and pepper per side.
3. Place the seasoned roast on a wire rack over a baking tray and refrigerate uncovered for at least 4 hours, preferably overnight. This dry brine enhances flavor and helps dry the exterior for better browning.
Cooking:
1. Remove the roast from the fridge about 4 hours before cooking to bring it to room temperature.
2. Preheat the oven to 500°F (260°C).
3. Drizzle the roast with neutral oil and rub it evenly over the surface, ensuring you don’t disturb the salt and pepper crust.
4. Place the roast on a foil-lined baking tray with a wire rack and sear in the oven for 15-20 minutes, or until the exterior is golden brown.
5. Reduce the oven temperature to 250°F (120°C). Insert a probe thermometer into the thickest part of the roast. Roast for 2.5-3 hours, or until the internal temperature reaches 125°F (52°C) for medium.
6. Remove the roast from the oven, tent loosely with foil, and let rest for 30 minutes before slicing.
Beef Jus
∙900g (1 32oz box) beef stock
∙50g (3 T) Worcestershire sauce
∙25g (1.5 T) beef bouillon base (e.g., Better Than Bouillon)
∙2 (7g / 2 1/2t) packets powdered gelatin
1. Combine all ingredients in a saucepan. Bring to a simmer over medium heat and reduce by 40-50%, about 15 minutes.
2. Add rendered beef drippings from the roast (about 2-3 T) for extra flavor. Skim off excess fat if needed.
3. Taste and adjust salt as needed. Serve warm.
Horseradish Sauce
∙125g (½ c) sour cream or Greek yogurt
∙75g (⅓ c) mayonnaise
∙75g (⅓ c) prepared refrigerated horseradish
∙10g (2 t) water
∙3g (½ t) salt
1. Combine all ingredients in a bowl and whisk until smooth and well blended.
2. Taste and adjust seasoning if necessary.
