Marks & Spencer's new limited-edition Chocolate and Cornflake Cookie has triggered a frenzy at the retailer's bakery counters, with viral footage appearing to show customers fighting to grab the treat.
The snack, priced at £3.25 for a bag of five, was introduced on November 4, 2026, and has since prompted massive queues at Foodhall bakery sections nationwide.
Viral Scenes in Stores
TikTok user @foodieszn captured shoppers in one M&S branch frantically grabbing bags of the cookie the moment they landed on shelves, with overlay text reading, 'Not everyone fighting because of the new Cornflake M&S cookies...'. The clip quickly went viral, amassing more than 17,000 likes.
Another clip posted by shopper Macy showed customers forming queues for the cookies inside a separate branch, with staff unable to get the treats onto shelves and instead handing them directly to waiting shoppers. Text on that post read, 'The M&S cookie trend is getting out of hand.'
Divided Opinions
Reaction to the cookie has been split. One person wrote: "This is not the behaviour one expects from M&S customers." Another added: "What is the world coming to... just make them yourself, I did." A third commented: "Another reason I hate people, absolutely ridiculous," while a fourth said: "I literally can't bear this country."
However, the situation appears to vary by location. One shopper remarked: "I live in Norwich, there's loads just sat there on the shelves. Why's everyone going mad in other cities?"
Long-standing patrons on Reddit, Mumsnet and food blogs remain sceptical, with many reckoning the viral phenomenon doesn't live up to expectations. Those who favour robust, richer flavours have praised the addition of black treacle and dark chocolate, noting a toasted caramel depth. Devotees emphasising the balance of soft, chewy dough, melting chocolate and crispy cornflakes have likened the experience to a "no-bake chocolate tiffin".
Those who tried the cookies fresh from the bakery counter or with a cold glass of milk rated them considerably higher than those who ate them after they had cooled down.
