kim che, or kim chi? It's fermented cabbage marinated in a hot sauce, pepper sauce. Korean favorite, the real Koreans take a head of cabbage, bury it in a backyard for a month or 2, dig it up, cut the rotten parts out, and make kim chi with the rest.

Clears your sinuses better then horseradish. I love it, get it from the Asian produce markets whenever I have a few bucks to spare.