Chef John's Perfect Prime Rib

Chef John's Perfect Prime Rib

Use Chef John's easy "mathematical method," and you'll get the best prime rib, cooked to a perfect medium rare, every time.
  • Preparation:
  • Cooking:
  • Total:
  • Serves: 4 persons



  1. Step 1

    Place prime rib roast on a plate and bring to room temperature, 2 to 4 hours.
  2. Step 2

    Preheat an oven to 500 degrees F (260 degrees C).
  3. Step 3

    Combine butter, pepper, and herbes de Provence in a bowl; mix until well blended. Spread butter mixture evenly over entire roast. Season roast generously with kosher salt.
  4. Step 4

    Roast the 4-pound roast in the preheated oven for 20 minutes. (If your roast is larger or smaller than 4 pounds, see footnote to calculate cooking time.)
  5. Step 5

    Turn oven off and, leaving the roast in the oven with the door closed, let the roast sit in the oven for 2 hours.
  6. Step 6

    Remove roast from the oven, slice, and serve.