The hugely popular Big Sleigh festive chicken sandwich returns with crispy chicken, creamy brie, crispy onions and sweet onion relish, alongside a brand-new Baileys Hard Shake, festive gravy pots and 100 FREE Big Sleighs up for grabs!
Dip Into Christmas At Slims!
Christmas has officially landed at Slim Chickens and this year, it’s going to be bigger, tastier and more indulgent than ever!
Slim Chickens is kicking off the festive season with the return of its hugely popular Big Sleigh Christmas sandwich, a brand-new Baileys Hard Shake, deliciously rich gravy pots and a giveaway of 100 FREE Big Sleigh sandwiches to celebrate!
Slim Chickens is going all out for Christmas, inviting guests across the UK to ‘Dip Into Christmas’ with a festive menu packed with big flavours, seasonal treats and plenty of Christmas cheer.
Taking centre stage is The Big Sleigh, Slim Chickens’ much-loved festive chicken sandwich, back by popular demand, making its highly anticipated return to the menu for another Christmas.
Bringing a delicious taste of the festive season to the brand’s famous freshly prepared chicken, The Big Sleigh combines crispy chicken, creamy brie, crispy onions and sweet onion relish, all wrapped in a sweet brioche bun.
It’s the ultimate combination of crispy, creamy, sweet and savoury, delivering a seriously indulgent Christmas twist on the classic chicken sandwich.
And the best part? Guests can enjoy The Big Sleigh for £9.95 on its own, or make it a proper festive feast with The Big Sleigh Meal for £14.25, complete with fries, house sauce and a bottomless drink.
But this Christmas, Slim Chickens is giving guests a whole new way to enjoy their festive favourite.
For just £1.50 extra, guests can add a deliciously rich gravy pot to their order, bringing an extra helping of festive comfort to every bite.
Perfect for dunking crispy chicken, dipping golden fries or pouring straight over The Big Sleigh, the gravy pot brings one of Christmas dinner’s best-loved traditions to Slim Chickens.
DIP, POUR, DUNK. You choose.
But that’s not the only Christmas treat Slim Chickens has up its sleeve!
Making its festive debut is the brand-new Baileys Hard Shake, bringing a deliciously boozy twist to the Slim Chickens shake menu.
A rich, creamy, handspun shake with the indulgent taste of Baileys Irish Cream, the new creation combines the brand’s signature shake experience with a grown-up festive twist.
Available for £7.45, or for just £4 as a meal upgrade, the Baileys Hard Shake is the perfect indulgent addition to a festive Slim Chickens feast.
Whether it’s a festive catch-up with friends, a well-earned treat after tackling the Christmas shopping or simply an excuse to enjoy something a little special, the new Baileys Hard Shake is giving guests another reason to celebrate the season at Slims.
The Baileys Hard Shake contains alcohol and is available to guests aged 18 and over only.
And with The Big Sleigh, gravy pots and Baileys Hard Shake landing together, Slim Chickens is serving up the perfect excuse to take a break from the Christmas chaos and enjoy a little festive magic.
Because Christmas should be about great food, good company and a little indulgence, not just the stress of getting everything done!
And because Christmas is the season of giving, Slim Chickens is making its festive launch even more exciting by giving away 100 FREE Big Sleigh sandwiches!
The festive giveaway will launch across Slim Chickens’ social media channels from 3 November, giving fans the chance to get their hands on one of the returning sandwiches without spending a penny.
Guests should keep their eyes peeled on Slim Chickens UK’s Instagram and TikTok channels for details on how to enter.
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.
“With crispy chicken, creamy brie, crispy onions and sweet onion relish in a sweet brioche bun, 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!
“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!”
Famous for its fresh, hand-breaded chicken tenders, generous portions and selection of 15 signature dipping sauces, Slim Chickens has become a go-to destination for chicken lovers looking for big flavour and freshly prepared food.
And with one of its most popular festive sandwiches returning, an indulgent new Baileys shake to discover, rich gravy for dipping and 100 free Big Sleighs up for grabs, Slim Chickens is pulling out all the stops to make Christmas 2026 a season to remember.
The Big Sleigh and Baileys Hard Shake launch on Tuesday 3 November 2026 and will be available until Tuesday 5 January 2027 at participating Slim Chickens restaurants across the UK.
