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Best Horseradish Sauce for Prime Rib

This creamy, tangy horseradish sauce is the ultimate companion for prime rib, delivering the perfect balance of heat and richness in just minutes. Forget store-bought versions—this homemade sauce enhances every bite of your holiday roast with fresh flavor and smooth texture.
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Prep Time 5 minutes
Total Time 35 minutes
Servings: 6 servings
Course: Sauce
Cuisine: American
Calories: 65
Ingredients Method Notes

Ingredients
  

  • 1/2 cup sour cream
  • 1/4 cup mayonnaise
  • 1/2 cup freshly grated horseradish or 2–3 tablespoons prepared horseradish
  • 1 teaspoon Dijon mustard
  • 1 teaspoon apple cider vinegar or lemon juice
  • Salt and black pepper to taste
  • Optional: 1 teaspoon chopped chives parsley, or minced garlic

Method
 

  1. In a medium bowl, whisk together sour cream, mayonnaise, and horseradish until smooth and combined.
  2. Add Dijon mustard, apple cider vinegar or lemon juice, salt, and pepper. Stir until fully blended.
  3. Taste and adjust seasoning—add more horseradish for heat or more sour cream for a milder, creamier sauce.
  4. Fold in optional chives, parsley, or garlic if using.
  5. Refrigerate for at least 30 minutes to allow flavors to develop before serving.

Notes

Always chill the sauce before serving for best flavor. Fresh horseradish provides stronger heat, while prepared horseradish offers a milder, balanced kick.