Oreo has rolled out dozens of new flavors over the past few years…but they’ve just taken it to a new level.

The newest Oreo flavor is…a mystery.

They come in a white package, and the cookies are the traditional chocolate Oreo cookies, but they’re not telling you what the cream is.

If you guess it right, though, you could have a shot at winning $50,000. You have until the end of November to submit your guesses to Oreo’s website.

So what COULD it be?

Some people who have tried them say they tasted like a cereal…or cereal milk.

Are you going to give it a try?