Question: what is wasabi made of?
Answer: Wasabi (Japanese: ワサビ, pronounced [ɰaꜜsabi]; Eutrema japonicum or Wasabia japonica) or Japanese horseradish is a plant of the family Brassicaceae, which also includes horseradish and mustard in other genera. A paste made from its ground rhizomes is used as a pungent condiment for sushi and other foods.