Robert Rothschild® Farm Gluten Free Creamy Cucumber Horseradish Sauce. Gourmet sauce. A refreshing, flavorful blend of cucumbers, onions, garlic and horseradish resulting in a sauce that is full of intense taste. Cucumbers originated in India where they have been grown for 3,000 years. For more great recipe ideas, visit www.robertrothschild.com. 1-800-356-8933/robertrothschild.com.