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This creamy horseradish sauce is a must for serving with prime rib. With plenty of horseradish, fresh dill, and green onions, this is the best horseradish sauce we’ve ever had and so easy to whip up. Perfect for Christmas prime rib or any time you want to impress!

A side of horseradish sauce next to prime rib on a white plate

What Makes This Recipe So Good

  • Make it ahead of time! It will keep in the refrigerator for at least two weeks, and the longer the flavors marinate together, the better the sauce will taste!
  • It compliments the other flavors in your meal without overpowering them. Your perfect prime rib will still be the star of your dinner, but the horseradish sauce is a solid supporting role. In fact, the horseradish acts as a palate cleanser, enhancing the flavors of your other dishes.
  • These ingredients fit into a ketogenic diet without even trying, so you can enjoy every last ounce without worrying about carb counts or being knocked out of ketosis.
  • It’s thick and creamy, which melds beautifully with the tender, juicy texture of prime rib.

Chef’s Tips

  • New to horseradish? It can come on strong, so start out using only a small amount at first, then add more to taste.
  • For a stronger flavor, add more prepared horseradish to your sauce as desired. Fresh grated horseradish is stronger than prepared horseradish, so if you really love the zing of horseradish, consider making your own!
  • Some brands of prepared horseradish contain a lot of liquid to keep the product moist in the jar. To avoid the sauce being too thin, drain your prepared horseradish before using it in this recipe!
  • I recommend making this at least an hour in advance, but 24 hours of “chill time” will really maximize the flavors in this horseradish sauce.
Close up of a silver dish with horseradish sauce next to prime rib on a plate

More Incredible Sauce Recipes

Recipe By: Cheryl Malik

Horseradish Sauce for Prime Rib

This creamy horseradish sauce is a must for serving with prime rib. With plenty of horseradish, fresh dill, and green onions, this is the best horseradish sauce we've ever had and so easy to whip up. Perfect for Christmas prime rib or any time you want to impress!
4

Ingredients

  • 1 cup full-fat sour cream
  • ½ cup full-fat mayonnaise
  • 2 tablespoons prepared horseradish
  • 1 teaspoon white wine vinegar
  • ½ teaspoon sea salt more or less to taste
  • 2 teaspoons Dijon mustard
  • 1 tablespoon finely chopped green onion optional`
  • 1 tablespoon chopped fresh dill optional

Instructions

  • Combine all ingredients in a mixing bowl and stir well.
    Ingredients for horseradish sauce in a white bowl
  • Chill for at least one hour.
    Finished horseradish sauce in a white bowl with a silver spoon

Approximate Information for One Serving

Calories: 304calProtein: 2gFat: 32gSaturated Fat: 10gCholesterol: 41mgSodium: 413mgPotassium: 89mgTotal Carbs: 2gFiber: 1gSugar: 2gNet Carbs: 1gVitamin A: 371IUVitamin C: 1mgCalcium: 62mgIron: 1mg
Nutrition Disclaimers
Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.
Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.

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