Where can I buy some Horseradish So I can at least make a Cocktail Sauce? Also when will "Latin Americans, Doms, assorted, learn that a thousand Islands dressing is NOT COCKTAIL SAUCE!? How many more years, Sheesh!.. I have a Big Bag of Shrimp and it needs proper sauce for dipping.. Ketchup/Horseradish/Lemon/ a little cilantro... Spicy!