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keto prime rib with horseradish cream

Prime Rib With Horseradish Cream

This keto-friendly recipe for prime rib is much easier to prepare than you might anticipate, totally delicious.
Course Dinner, Lunch
Cuisine American
Keyword Prime Rib
Prep Time 10 minutes
Cook Time 3 hours
Total Time 3 hours 10 minutes
Servings 10
Calories 184kcal
Author Sara Louise


  • 1 Boneless juicy prime rib roast 8-12 pounds
  • ¼ cup Olive oil
  • ½ cup Kosher salt
  • 2 tablespoons Granulated garlic
  • 1 tablespoon Pepper
  • 2 tablespoons Paprika
  • 1 tablespoon Dried thyme
  • 1 tablespoon Dried rosemary
  • ¼ cup Horseradish drained
  • ½ cup Mayonnaise
  • 1 cup Sour cream
  • Half lemon juice
  • pinch Salt and pepper
  • Dash of Tabasco


  • Slice several times all the way down the prime rib to score the fat side; watch that you do not slice all the way into the meat. Rub the cut of meat all over with olive oil and season generously all around the meat. You can add plenty of seasoning and this can be done the previous night.
  • Remove the prime rib from the refrigerator at least 1 hour before cooking and allow the prime rib to warm up room temperature ready for the oven.
  • Next you must set the oven to 460-490 degrees. Roast the rib for about 20 minutes with the fan on high. Then, set oven on broil setting and continue cooking for another 8 minutes. Reduce temperature to 320 degrees. Continue to roast the prime rib in the oven for another hour and 25 minutes.
  • Check the meat temperature and remove from oven when you reach about 115-120 degrees. You may find hat more time is needed depending on your oven type. The reality is that A 14-pounder can take over 3 hours in the oven at 325 degrees. Let rest for 30 minutes to 1 hour before carving up. 
  • Adjust cooking times depending on your oven and how you like the cut.
  • To make the Horseradish Cream side, just mix the mayonnaise, horseradish, lemon juice, and Tabasco with the sour cream. After which move to season with some salt and pepper, ready to go, just yum!


Help this Valentines Day Prime Rib come alive at with this range of meat friendly cooking accessories.


Calories: 184kcal | Carbohydrates: 4g | Protein: 1g | Fat: 18g | Saturated Fat: 4g | Cholesterol: 16mg | Sodium: 5775mg | Potassium: 106mg | Fiber: 1g | Sugar: 1g | Vitamin A: 860IU | Vitamin C: 2.1mg | Calcium: 49mg | Iron: 1.2mg