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Prime Rib Au Jus

This Prime Rib Au Jus recipe is an incredibly impressive meal that’s so easy to make! Featuring tender, melt-in-your-mouth delicious beef and a savory dipping sauce, it’s a stunning recipe that will leave your guests raving.

Prep Time
20 mins
Cook Time
3 hrs
Servings: 12 people
Calories: 368 kcal
Course: Dinner
Cuisine: French , American , French-American Fusion

Ingredients

For the Prime Rib
  • 5-6 lb boneless prime rib roast untrimmed
  • 2 TB kosher salt
  • 2 TB freshly ground black pepper
  • 2 TB garlic powder
For the Au Jus
  • ¼ cup unsalted butter
  • ¼ cup onion finely chopped
  • 4 cloves garlic minced
  • 1 sprig of thyme
  • 1 sprig of rosemary
  • 1 tsp better than bouillon beef base or beef bouillon powder
  • ¼ tsp freshly ground black pepper
  • 2 cups beef stock regular strength
  • 1 TB cornstarch fully dissolved in 2 TB water*

Instructions

For the Prime Rib
    Cup of Yum
  1. Combine salt, pepper, and garlic powder in a small bowl. Set aside.
  2. Pat dry prime rib roast thoroughly with paper towels. Generously coat with salt mixture evenly on all sides, pressing to adhere. Place roast on a plate, cover, and chill in fridge overnight.
  3. Remove roast from fridge about 6-8 hours before serving time and allow it to come to room temperature.
  4. Set oven to 200F. Insert meat thermometer probe into center of roast and place roast on middle rack of oven. Cook until internal temperature is 10 degrees lower than desired doneness.  For medium rare (130F), remove from oven when internal temperature reaches 120F.
  5. Remove roast from oven, loosely tent with foil, and allow roast to rest at least 30 minutes. Do not remove thermometer probe, nor slice into the roast at all, or juices will escape.
For the Au Jus
  1. In a saucepan set over medium-high heat, melt the butter. Add onion and stir 2 min. Add garlic and stir 1 min. Add thyme, rosemary, bouillon, black pepper, and broth. Stir well to combine.
  2. Bring to a boil and continue to boil until liquid is reduced by half of its original volume.
  3. Reduce heat to a low boil, and add a little bit of the dissolved cornstarch at a time, stirring constantly - use only as much as is needed for sauce to reach desired thickness. Remove sprigs of herbs. If desired, au jus can be drained for a smooth sauce.
  4. Just before serving, set oven to broil and brown all sides of roast, rotating as needed. Slice and serve with warm au jus.

Notes

  • * The roast does not need to be trimmed of fat before roasting.  Rather, leaving it in place provides the benefit of preventing the meat from cooking more during the final broiling step.
  • * Cook time will vary based on the temperature of the meat when placed in the oven.  Generally, a 5-6 lb boneless roast will take about 2-3 hours to cook to rare.  A bone-in roast will take longer. Though a rough time estimate is provided, please keep in mind that you'll be cooking by the internal temperature reading, and not by time. 
  • * Be sure to rest the roast for a minimum of 30 minutes. This not only allows the juices to redistribute back into the meat, but it will also prevent the roast from cooking past the desired doneness when broiling. Use this time to make au jus, so you can broil and slice the roast immediately before serving.
  • *It's super important to ensure cornstarch is 100% dissolved in water, with no streaks of white left prior to using in sauce. Otherwise, it will result in a lumpy texture.
  • *Au jus is meant to be sauce-like in nature and less thick than regular gravy. If you’d like it thicker, add a bit more fully-dissolved cornstarch.

Nutrition Information

Serving 1serving Calories 368kcal (18%) Carbohydrates 3g (1%) Protein 17g (34%) Fat 32g (49%) Saturated Fat 13g (65%) Polyunsaturated Fat 2g Monounsaturated Fat 14g Cholesterol 69mg (23%) Sodium 821mg (34%) Potassium 337mg (10%) Fiber 0.5g (2%) Sugar 1g (2%) Vitamin A 6IU (0%) Vitamin C 0.4mg (0%) Calcium 18mg (2%) Iron 2mg (11%)

Nutrition Facts

Serving: 12people

Amount Per Serving

Calories 368

% Daily Value*

Serving 1serving
Calories 368kcal 18%
Carbohydrates 3g 1%
Protein 17g 34%
Fat 32g 49%
Saturated Fat 13g 65%
Polyunsaturated Fat 2g 12%
Monounsaturated Fat 14g 70%
Cholesterol 69mg 23%
Sodium 821mg 34%
Potassium 337mg 7%
Fiber 0.5g 2%
Sugar 1g 2%
Vitamin A 6IU 0%
Vitamin C 0.4mg 0%
Calcium 18mg 2%
Iron 2mg 11%

* Percent Daily Values are based on a 2,000 calorie diet.