Fool-Proof 500 Rule Prime Rib

Fool-Proof 500 Rule Prime Rib

Main Course
195 min
10 servings
1070 kcal / serving

Making a tender, juicy prime rib roast in the oven is easy with this No Peek 500 Rule Prime Rib recipe. This is the most detailed and tried-and-true recipe you'll find online.

Ingredients

  • 10 pound4-rib prime rib roast (bones cut off and tied back on by the butcher, room temperature )
  • 1 tablespoongarlic powder or granulated garlic
  • 1 tablespoononion powder or granulated onion
  • 1 tablespoonblack pepper
  • 1 tablespoonseasoned salt (such as lawry's seasoned salt )
  • 1 cupsour cream
  • ½ cupwhipping cream or heavy cream
  • 1 dasheshot pepper sauce (or more, if desired )
  • 1 tablespoonworcestershire sauce
  • 1 tablespoonsprepared horseradish
  • 1 tablespoonspicy brown mustard
  • 1 tablespoonred or white wine vinegar
  • 2 clovesgarlic, crushed (may substitute 1 teaspoon garlic powder)
  • 3 cupswater
  • 5 teaspoonsbetter than bouillon concentrate, beef flavor (or use beef bouillon cubes)
  • 1 tablespoonsoy sauce
  • kosher salt and ground black pepper, to taste

Directions

Prepare the prime rib

  1. 1

    4-5 hours prior to cooking the prime rib roast, remove it from refrigeration; unwrap the roast from all packaging, keeping the label so you know exactly how much the prime rib weighs for making the cooking calculations in this recipe.

  2. 2

    When you are ready to cook the prime rib roast, pre-heat the oven to 500 degrees F., placing your oven rack in the lower third of the oven.

  3. 3

    Place the unseasoned roast, fat side up, on a heavy-duty sheet pan with 1-inch sides. Combine the granulated garlic, granulated onion, and black pepper with the seasoned salt in a small bowl. Using your fingertips, rub the prepared spice blend over every area of the exterior of the roast.

  4. 4

    Place the prepared rib roast into the preheated 500 degree F. oven, uncovered, and cook for 6 minutes per pound for medium rare doneness or 7 minutes per pound for medium doneness.

  5. 5

    When the timer sounds, immediately turn your oven temperature down to 170 degrees F.Set your timer for 2 hours, leaving the roast in the oven to rest and finish cooking from residual heat. NO MATTER WHAT, DO NOT OPEN THE OVEN DOOR AT THIS POINT OF THE COOKING PROCESS!

  6. 6

    When the timer sounds at the full 2 hour mark, open the oven door,. Use an instant-read meat thermometer to check the internal temperature of the meat. For medium rare prime rib, you'll want the internal temperature to be right at 130-135°F. For medium prime rib, you'll want the internal temperature to be between 135-140°F.

  7. 7

    If the internal temperatute of your prime rib roast temps a bit cooler than 130-135 degrees F., simply preheat your oven to 375 degrees F., returning the roast to the oven until the internal temp reaches 130-135 degrees F., checking the internal temperature every 10 minutes or so until the prime rib raises a few more degrees internally to the desired temperature.

  8. 8

    Using a sharp knife or your favorite kitchen shears, snip the strings that are holding the rib roasat to the bone rack.

  9. 9

    Using two meat forks, lift the prime rib roast from the rack of bones and the roasting pan, placing it onto a large cutting board.

  10. 10

    Slice the prime rib into 3/4 inch thick slices, placing them onto dinner plates. If desired, pour a bit of the warm au jus over the prime rib, then add a dollop of horseradish sauce alongside. Serve at once.

Prepare the creamy horseradish sauce (optional)

  1. 1

    Combine all the sauce ingredients in a small bowl until smooth; store in the fridge until ready to serve.

Prepare the au jus (optional)

  1. 1

    Place the water into a large, deep skillet and bring to a boil; reduce the heat to low, then add the bouillon concentrate, and soy sauce, whisking until well blended. Season to taste with salt and pepper; keep warm.