CHICAGO (CBS) – One good guess could win you $50,000.

Oreo is offering $50,000 to the person who can guess the limited edition mystery flavor.

“There’s a delicious cookie creation on the loose, and we need your help guessing the flavor! Try our Mystery OREO®Cookies, submit your guess, and enter for your chance to be our $50,000 Grand Prize winner or one of our five $10,000 First Prize winners!” states the contest website.

The contest is open to residents of the United States and Puerto Rico and ends at 11:59 pm ET on November 30, 2017.

Enter the contest here.

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