Originated in the city of Dijon, Dijon mustard (pronounced "dee-zone") is special because it contains a crucial ingredient- It is something called verjuice, or verjus in French, which is a juice made from unripe grapes. In fact, this tart liquid gives Dijon mustard its characteristic flavor that everybody loves. Now, for an extra health boost, add a spoonful of this mustard to broccoli, cauliflower, and cabbage dishes. As a matter of fact, mustard contains myrosinase, an enzyme that activates a cancer-fighting compound in these vegetables.