Guess Oreo's new mystery flavor for a chance to win $50k

What's in the filling? Oreo's new mystery cookie contest will make you want to take a guess or two.

Fans of the cookie sandwich can guess the mystery flavored creme for a chance to win up to $50,000.

The contest will run from Oct. 9 through Nov. 30. First, test the cookie then submit your guesses to OREOmystery. You're allowed one guess per day.

RELATED: New 'Firework' Oreo hits store shelves

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