If you love a good mystery, Oreo is bringing back its 'Mystery Oreo' contest.
Nabisco says anyone who can correctly identify the limited edition mystery flavor could be eligible for a chance to win $50,000.
The company says the flavor could be a new flavor or a combination of flavors. They also say that each package of cookies contains one of three clues.
Cookie detectives can taste test the cookie and submit their guesses on MysteryOREO.com until November 10th. You can also make a new guess every day to increase your chances of winning.
There are also three ways participants can earn bonus sweepstakes entries, completing a Facebook referral, sharing on Twitter and a mail in.
Click HERE for more on bonus entries and the official rules of the competition.