... . Like horseradish, it is a root, or , and it is grated or sliced for use in cooking. Wasabi is ... cities may have fresh, genuine wasabi roots for sale, and a shopper will know he has the genuine article ... . The grated wasabi is gathered into a ball and left to sit for a couple of minutes, to allow the ... to flavor mustard or , as a meat sauce, or in salad dressings. For those who simply cannot afford the ...