McDonald's is selling a bizarre limited-edition $2 burger with Spam, crushed Oreo-style cookies, and mayonnaise in China

• McDonald's China is selling a limited-edition Spam and cookie burger that's only available for one day.
• For 13.14 yen ($2), diners can get a burger with two thick slices of Spam topped with a generous portion of crushed Oreo-style cookies and a creamy white sauce.
• Reactions to the burger have been mixed, but one reviewer called it "unexpectedly delicious."

In early December, Burger King Singapore launched an ice-cream sundae stuffed full of French fries after it noticed diners dunking fries in their ice-cream. Now, McDonald's China is cashing in on the sweet-savory trend.

Its latest food item is a burger stuffed with Spam - canned, cooked pork - topped with crushed Oreos and doused in creamy sauce.

But the 13.14 yen ($2) burger is only available on Monday, according to a post by McDonald's on the Chinese social media platform Weibo, and just 400,000 of the items are up for grabs.

Promotional images released by the fast food chain show two thick slices of the canned pork, topped with a generous portion of crushed cookies and then a creamy white sauce, which one reviewer said was mayonnaise.

The images only show the Spam logo, but a post from McDonald's on Weibo referred to Oreo cookies. A Twitter user pointed out that they may be a different-branded version of the same-style cookies.

Reviews of the burger on Weibo are generally lukewarm. Some diners say the taste is just about palatable - but one review called the burger "unexpectedly delicious."

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Daniel Ahmad, a video game industry analyst who shared the promotional images on Twitter, said that "people in China hate this too."

"Some of y'all saying 'Why would China do this' seem to have forgotten that McDonald's is an American company," he added.

"If anything this is a declaration of war on China by the US."