Slim Chickens has launched its nationwide Christmas menu, bringing back its popular festive chicken sandwich alongside a brand-new boozy milkshake, dipping gravy pots, and a 100-burger giveaway.
Headlining the seasonal offering is The Big Sleigh (£9.95 solo, £14.25 as a meal), which stacks crispy chicken tenders, creamy brie, crispy onions, and sweet onion relish inside a brioche bun.
For an extra £1.50, diners can now add a pot of warm, rich gravy designed for dunking tenders, dipping fries, or pouring directly over the burger.
The chain has also introduced the Baileys Hard Shake (£7.45 standalone, or £4 as a meal upgrade), blending its classic handspun vanilla shake with Baileys Irish Cream for visitors aged 18 and over.
To mark the launch, Slim Chickens is giving away 100 free Big Sleigh sandwiches via competitions running across its UK Instagram and TikTok channels from today.
Millie Collier, Slim Chickens Brand Manager, said: “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!”
The Christmas menu is available at participating UK restaurants from Tuesday 3 November 2026 until Tuesday 5 January 2027.
