For National Mustard Day next month, French's is partnering with Skittles to make their first-ever mustard-flavored candy. It will only be available in three cities and in an online sweepstakes.

You may - or may not- want to try the newest flavor of Skittles candy on a hot dog or soft pretzel. After all, mustard is a classic topping for both of those treats. But the new French’s-mustard ...