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Easy Creamy Horseradish Sauce for Prime Rib and Steak

A close-up of creamy, white homemade horseradish sauce served in a small white fluted ramekin on a wooden table.

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Make this quick, zesty, and creamy horseradish sauce at home. It is the perfect condiment for prime rib, roast beef, or steak, and works well as a sandwich spread.

Ingredients

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  • 1 cup sour cream
  • 1/2 cup mayonnaise
  • 1/4 cup prepared horseradish, drained
  • 1 teaspoon Dijon mustard
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon white vinegar

Instructions

  1. Combine the sour cream, mayonnaise, drained horseradish, Dijon mustard, salt, pepper, and white vinegar in a medium bowl.
  2. Whisk the ingredients together until the sauce is smooth and fully combined.
  3. Taste the sauce and adjust seasoning if needed, adding more horseradish for extra kick or salt for balance.
  4. Cover the bowl and refrigerate the horseradish sauce for at least 30 minutes before serving. This allows the flavors to meld.
  5. Serve chilled alongside roast beef, prime rib, or steak.

Notes

  • Drain the excess liquid from the prepared horseradish before mixing to prevent a watery sauce.
  • For a tangier sauce, add 1/2 teaspoon of fresh lemon juice.
  • You can make this sauce up to 4 days ahead; store it covered in the refrigerator.

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