"Use on gourmet deli sandwiches, ham, steak, bratwurst and more. Use as an accompaniment to seared salmon, roast beef and crab cakes for a flavorful new taste. Adds a zip to potato salad, too. Perfect marriage of horseradish and mustard! Mustard seeds, wine and vinegar, spices and salt; all combine with time to create a condiment that's at once earthy and spicy, tangy and fierce.