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Mayor McCheese is not going to like this.

Recent McDonald's customers hoping to bite into a stick of mozzarella-filled goodness, thanks to a new item on the fast food chain's McPick 2 promotion menu, are finding a fatal flaw in the snack.

PSA: Don't ever buy mozzarella sticks from McDonald's. pic.twitter.com/ySUjXNjk0U — Zach Peterson (@MidwestDrummer) January 27, 2016

That's because they're discovering there's no cheese inside McDonald's mozzarella cheese sticks!

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And they're not keeping quiet, either. Dozens of customers have posted images of the hollowed-out, sad, in-name-only breaded cheese items, like these:

Craving mozzarella sticks. Excited that @McDonalds has them! Just to get home to have hollow breading :( #sad pic.twitter.com/ngnLG7Kx8K — Amber (@Heyamber021) January 26, 2016

So where's the cheese in my mozzarella sticks, McDonald's? pic.twitter.com/NaU1s1ueS4 — Minsun Dimsum (@careless_seoul) January 17, 2016

I got mozzarella sticks from @McDonalds for the first time and there was no cheese never going back again lol pic.twitter.com/Kf0Q94deqw — morgan (@neongypsyx) January 25, 2016

A lack of cheese is not Gouda for business, a fact the chain acknowledged in a statement to the Chicago Tribune.

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"We are aware of a low volume of guest concerns about our Mozzarella Cheese Sticks," read the statement. "In these instances, we believe the cheese melted out during the baking process in our kitchens and shouldn't have been served. We apologize to any customers who may have been affected. We are working to fix this in our restaurants."

McD's, we know you're cheddar than this. Please get on the stick and start delivering that ooey-gooey goodness, so we can Edam it all up!

Follow Randee Dawn on Twitter.