Mustard or mustard sauce is a well known condiment. Be it cold cuts or hotdogs, sandwitches or croquettes. The Dijon town in burgundy region of france is known for its mustard. Dijon style mustard is an icon. Jean Naigeon, who decided to use vinegar instead of verjuice (juice of unripe grapes). Indeed, whilst the original Burgundy condiment made out with verjuice was acidic. The authentic recipe contains mustard, blackpepper,salt white wine and white vinegar. The standard recipe was gaurded by the order of mustard and vinegar makers. From 1996 this recipe was gaurded under the fellowship of djon mustard.