Marks & Spencer unveils new tortilla flavour ahead of Halloween - and fans confirm 'they are so good'

These creepy crisps mix two flavours in one bag, creating a Russian roulette-style snacking adventure.

Customers can either enjoy a tasty nacho cheese tortilla or feel the heat of a hot chilli pepper flavour with each bite.

M&S described the snack as "the Russian roulette of Halloween snacks".

Customers are invited to "dig in to a bag of these creepy crisps to find out if you'll get lucky with a tasty nacho cheese tortilla or feel the wrath of our HOT chilli pepper flavour instead".

This innovative concept gives "a whole new meaning to trick or treat", according to the retailer.

The Ghostly Chilli Cheese Tortillas are now available in M&S Foodhalls and online at Ocado.

M&S reassured customers in an Instagram post that: "Both flavours are actually DELICIOUS, we're not that cruel really".

This Halloween-themed snack offers a unique twist on traditional crisps, inviting snackers to test their luck with each handful.

The comment section of the post was flooded with comments from delighted shoppers, with one confirming the treats are "so nice."

Another fan recommended a delicious pairing for the snack, writing: "They are so good with the buffalo chicken dip!!!"

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"You’ve always got the best treat section," another shopper quipped.

Marks & Spencer recently unveiled a trio of sweet treats just in time for Halloween, but shoppers need to act fast to get their hands on them.

The British retailer has introduced Bursting Blisters, Cackle & Pop clusters, and Hallow-scream Munch to its seasonal range, available in M&S Foodhalls and on Ocado.

The limited-edition treats have delighted trick-or-treaters and Halloween enthusiasts online.