Most Wasabi is Fake
Wasabi is a delicious addition to any sushi dish...or something is. Turns out, 99% of all the wasabi sold in the US is fake! The real stuff is pretty expensive, selling at $160 per kilogram. What people in the US are used to eating is a dyed mixture of horseradish and hot Chinese mustard. So maybe you like wasabi on your dish, but it's not likely to be the real deal.