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Perfect prime rib

How to Cook the Perfect Prime Rib Roast: Recipe

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  • Author: Martin
  • Prep Time: 2 hours
  • Cook Time: 3 hours
  • Total Time: 5 hours
  • Category: Beef
  • Method: Roasting
  • Cuisine: European


Perfect prime rib is all about temperature control. Here’s how to get it just right. 


  • 1 prime rib, size determined by need
  • Kosher salt
  • Freshly ground black pepper


  • Trim your rib how you like it best.
  • Generously salt the roast, insert a thermometer probe near the edge of the roast, set the low-temp alarm of your ChefAlarm for 30°F (-1°C) and place the roast in the freezer.
  • Meanwhile, preheat your oven to 225°F (107°C).
  • When the low-temp alarm sounds, remove your roast from the freezer.
  • Heat a heavy skillet (cast iron is preferred here) over high heat. 
  • Sear the roast well on all sides in the skillet. 
  • Season with pepper and/or any other seasonings you like.
  • Place the roast on a rack set into a rimmed baking sheet. Insert a probe into the very center and set the high-temp alarm for 125°F (52°C). 
  • Cook the roast in the oven until the high-temp alarm sounds. Verify that there are no lower temperatures in the meat with your Thermapen Mk4
  • Remove the meat from your oven and let it rest for 30 minutes, lightly tented with foil. 
  • Carve and serve!