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This easy prime rib recipe with au jus and *perfect* creamy horseradish sauce is perfect for the holidays! This easy prime rib recipe is truly just that: super easy, and it produces a perfect medium rare, tender roast that everyone will love. With an easy au jus and the most perfect creamy horseradish sauce I've ever tasted, this easy prime rib recipe also has options to make it a paleo prime rib or Whole30 prime rib, too - even the horseradish sauce!

Easy Prime Rib Recipe with Au Jus and Perfect Creamy Horseradish Sauce (Paleo, Whole30 Options)

This easy prime rib recipe with au jus and *perfect* creamy horseradish sauce is perfect for the holidays! This easy prime rib recipe is truly just that: super easy, and it produces a perfect medium rare, tender roast that everyone will love. With an easy au jus and the most perfect creamy horseradish sauce I've ever tasted, this easy prime rib recipe also has options to make it a paleo prime rib or Whole30 prime rib, too - even the horseradish sauce!

This recipe includes an optional garlic-rosemary crust. The roast is delicious with just salt, pepper, and butter, but the garlic and rosemary are so flavorful. Either way, you'll have a delicious prime rib!

Course Main Course
Cuisine American
Keyword au jus, easy, prime rib
Prep Time 5 minutes
Cook Time 1 hour 30 minutes
Total Time 1 hour 35 minutes
Servings 8 people
Calories 906 kcal

Ingredients

Easy Prime Rib

  • prime standing rib roast
  • 1/4 cup unsalted grassfed butter or ghee if paleo or Whole30, softened
  • sea salt
  • freshly cracked black pepper
  • 2-3 cloves garlic minced, optional
  • 1 Tbsp. fresh rosemary minced, optional

Au Jus

  • 1 Tbsp. Worcestershire sauce if on Whole30 make your own or skip
  • 1/2 cup red wine if on Whole30, swap for 1/2 cup beef broth
  • 1 1/2 cups beef broth

Perfect Creamy Horseradish Sauce

  • 1 8- ounce container sour cream or cashew cream if paleo or Whole30 (see note)
  • 1/2 cup mayonnaise
  • 1 Tbsp. finely chopped green onion
  • 3 tsp. prepared horseradish
  • 1 Tbsp. chopped fresh dill
  • 2 tsp. Dijon-style mustard see note if Whole30
  • 2 tsp. white wine vinegar
  • 1/4 tsp. sea salt

Instructions

  1. Make the horseradish sauce ahead: stir together all ingredients and chill at least one hour, preferably overnight. If making paleo or Whole30 version, see note.
  2. Roast does not need to come to room temperature. Preheat oven to 450º F. Sprinkle all sides liberally with salt, then generously crack fresh black pepper over. If making garlic-rosemary crust, in a small bowl, stir together softened butter or ghee, minced garlic, and rosemary, then pat evenly over roast. If not using crust, simply pat softened butter over roast.
  3. Place in roasting pan and put in oven. Cook for 15 minutes, then reduce heat to 325º F. Insert a meat thermometer into the center of the roast and cook until internal temperature is 113-115º F for very medium rare. Roast will continue cooking after removing from oven. Baste roast every 30 minutes using a culinary brush with the fat that's dripped into the pan. When roast reaches desired temperature, remove roast from the oven, transfer the roast carefully to a cutting board, and let rest 20 minutes while you make the au jus.
  4. Place the roasting pan on the stove over medium-low heat. Add Worcestershire sauce and red wine and reduce slightly, by about 1/4. Add beef broth and continue to simmer until reduced to desired consistency. Carefully tilt roasting pan and, using a spoon, discard excess fat floating on top. Carve roast and serve with au jus and horseradish sauce.

Recipe Video

Recipe Notes

If on a Whole30, make sure your Dijon mustard is Whole30-compliant. Annie's makes a compliant version, and it's readily available at many grocery stores.

To make cashew cream for paleo/Whole30 version of the horseradish sauce:

3/4 cup cashews, preferably soaked in water 4 hours
6 Tbsp. water
1 Tbsp. fresh lemon juice
1/2 tsp. apple cider vinegar

Combine all ingredients in a high-speed blender and blend until completely smooth. Continue with recipe.

Nutrition Facts
Easy Prime Rib Recipe with Au Jus and Perfect Creamy Horseradish Sauce (Paleo, Whole30 Options)
Amount Per Serving
Calories 906 Calories from Fat 747
% Daily Value*
Fat 83g128%
Saturated Fat 34g213%
Cholesterol 174mg58%
Sodium 534mg23%
Potassium 621mg18%
Carbohydrates 2g1%
Sugar 1g1%
Protein 32g64%
Vitamin A 440IU9%
Vitamin C 1.7mg2%
Calcium 66mg7%
Iron 3.7mg21%
* Percent Daily Values are based on a 2000 calorie diet.