Horseradish Sauce – Sour Cream Base INGREDIENTS: 1 Cup Sour Cream 1/4 Cup Horseradish 1 Tbsp. Dijon or Spicy Brown Mustard 1 tsp. White Vinegar 1 tsp. Cooking Sherry or Dry Sherry 1/2 tsp. Salt 1/4 tsp. Pepper