A British fast food fan has sold vintage McDonald’s Chinese-style sauces for more than £11,500.

The Ipswich-based seller sold a pair of Asian dipping sauces, which were released by the burger chain in 1998, on eBay.

2 A British fast food fan has sold 20-year-old McDonald’s Szechuan sauce on eBay for £11,500 Credit: AsiaWire

The Szechuan dip came out as a limited-edition condiment to mark the release of Disney’s animated film Mulan.

The unidentified Brit found the "Mulan Szechuan teriyaki dipping sauce" and a Wasabi dip while cleaning out "a really old car".

He placed them on the online auction site where they received 187 bids before being sold to an American buyer for $14,700.

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2 Rick and Morty fans have called on McDonald’s to bring back a cult 90s sauce Credit: YOUTUBE

The item description stated: "I hope somebody who wants to eat some 20-year-old gnarly sauce gets this.

"I would prefer not to sell it to a collector."

A petition was recently started to reintroduce the sauce after it was referenced in popular US animated sci-fi sitcom Rick and Morty.

The online petition reached McDonald’s attention after attracting more than 35,000 signatures.

It is currently unknown whether the are any plans to bring back the sauce which is described as tasting "sweet, sour and spicy".

Chinese people have been quick to mock the sauce as a Western rip-off of Szechuan cuisine – which originates from China’s southwestern Szechuan province.

Writing on Weibo, one social media user said: "Don’t even need to try the sauce to know it’ll be sweet and sour with a tinge of spiciness – nothing to do with Szechuan."

It is not the first time that McDonald’s Szechuan dipping sauce has been posted on eBay.

At the beginning of the month, a pot of the sauce attracted bids of up to £80,000 before being mysteriously deleted from the online auction site.