- 1 cup regular or reduced-fat (not nonfat) sour cream
- 2 to 3 tablespoons prepared horseradish
- 1 teaspoon Dijon mustard
- 1 teaspoon balsamic vinegar
- Salt and white pepper
- In a small bowl, stir together the sour cream, horseradish, mustard, and vinegar. Season with salt and white pepper to taste.
- Cover and refrigerate until ready to serve, up to 4 days.