Popular fast food chain unveils ‘tremendous’ Christmas menu with boozy Baileys milkshake

| Senior Lifestyle Reporter Published November 9, 2026 12:02pm Updated November 9, 2026 12:02pm The Big Sleigh is back (Picture: Slim Chickens UK) From KFC’s Gravymas Burger to BK’s Camembert Wagyu, fast food options across the UK are getting a festive glow-up. And another major menu change is taking place at Slim Chickens this month, as the popular chicken chain unveils its seasonal offering. The Big Sleigh Christmas Sandwich is making a grand return for the holiday months, plus there’s a new dip and a ‘tremendous’ drink for those who love a bit of Baileys at this time of year. Here’s everything you need to know… What’s on the Slim Chickens Christmas menu for 2026? The Big Sleigh is the star of the show, featuring crispy chicken, brie, crispy onions, and a sweet relish, all inside a brioche bun. Slim Chickens says it’s ‘the ultimate combination of crispy, creamy, sweet, and savoury’, which delivers a ‘seriously indulgent’ Christmas twist on the classic chicken sandwich. And for this year, you can make the experience even more festive by adding a new gravy pot for £1.50, to dip, dunk, and pour to your heart’s content. The gravy is said to be ‘deliciously rich’, and can be paired with other menu items, including crispy chicken or fries. And the gravy pot isn’t the only new thing on the list; a Baileys Hard Shake is also making its debut. Ask Metro Use AI to go deeper into the stories you care about – powered by Metro and trusted publications. The handspun shake features the ‘indulgent’ taste of Baileys Irish Cream and is a festive treat for guests aged 18 and over only. It’s priced at £7.45 on its own, or customers can get it for just £4 if they order it as a meal upgrade. There’s a boozy new drink too (Picture: Slim Chickens UK) Online, the new Christmas items have been hailed as ‘tremendous’ by fans. On Instagram, @danimakesfilms wrote: ‘Sleigh all day!! That looks tremendous!’ While @gr.eat.food said: ‘I need this in my life.’ And @roxeatz proclaimed: ‘I NEED TO TRY THIS.’ The new items are available to order at Slim Chickens now and will be sticking around until January 5, 2027, at participating restaurants. Which Christmas item are you most excited for at Slim Chickens? The Baileys Hard ShakeCheck Sign up to Metro's The Slice newsletter for your guide to what's on in London, with trusted reviews, offers and giveaways. Speaking about the new menu, Millie Collier, Slim Chickens brand manager, said: ‘Christmas is one of our favourite times of the year at Slim Chickens, and we’re so excited to bring back The Big Sleigh for another festive season. ‘We know how much our guests love it, and this year we’ve made the whole experience even more indulgent. ‘The Big Sleigh is packed with everything you could want from a festive chicken sandwich, and now, with the option to add a pot of rich gravy for just £1.50, we’re giving guests even more ways to enjoy it. ‘Dip, pour or dunk – it’s completely up to you!’ She added: ‘We’re also really excited to introduce our new Baileys Hard Shake, which brings a little grown-up indulgence to the menu and makes the perfect festive treat. ‘And of course, we couldn’t kick off Christmas without giving something back, so we’re giving away 100 free Big Sleighs to help spread a little festive cheer. We can’t wait for everyone to get involved.’ Deals of the Day The Orlando holiday deal Disney fans shouldn't miss We're adding this discounted NEOM gift set straight to basket Want an LED face mask for less? This Black Friday deal could save you hundreds This teeth whitening sale could save you up to 64% before Black Friday The best Black Friday sleep deals to upgrade your bedroom with Simba’s 33% off sale To be in with a chance of winning a free sandwich, you’ll need to keep your eyes peeled on the Slim Chickens Instagram and TikTok channels for details on how to enter. More fast food news... Do you have a story you’d like to share? Get in touch by emailing MetroLifestyleTeam@metro.co.uk Arrow MORE: Tesco Christmas markets are back for 2026 with goodie bags plus free food and drink Arrow MORE: ‘Velvety’ hot chocolate sold in supermarkets crowned better than M&S and Knoops Arrow MORE: Brits are getting the ick over ‘dystopian’ new shopping trend at M&S The Slice Your free newsletter guide to the best London has on offer, from drinks deals to restaurant reviews.