The Perfect Duo!

Every good burger needs a sidekick.

Your fastest route this week might be our Strike Duos. Meet the £11.99 Duo Deal – your pick of a Shack favourite, paired with our crispy crinkle-cut fries, all wrapped up in one crave-worthy duo.

What’s in the Duo?

You’ve got options:

• Single ShackBurger + Plain Fries = £11.99
• Chicken Shack + Plain Fries = £11.99
• Single Cheeseburger + Plain Fries = £11.99

Classic, craveable and exactly what you’re in the mood for. 

Fancy a refresher? Don’t forget to add a drink to your duo.

Where & when can you get it?

We’re rolling this one out in two waves:

London Shacks (excluding Gatwick): 21st – 24th April 2026

Out of London Shacks: 21st April – 31st May 2026

That includes Birmingham, Cambridge, Cardiff, Oxford, Clapham, Stratford, Camden and Brent Cross – so there’s a good chance your nearest Shack is in on it.

Why you’ll want one…

Because sometimes you just don’t want to overthink it. 

Lunch? Sorted.
Dinner? Done.
Late bite? Always a great idea.

The £11.99 Duo Deal keeps things easy, just show up and dig in.

Head to your nearest Shack, bring your friends, and get stuck in while it’s still on.

T&Cs:
£11.99 Shack Duo Deal is available in-Shack at participating locations. The offer includes a Single ShackBurger, a Single Cheeseburger, and a Chicken Shack Burger with plain fries only. Limited time offer. No modifiers available. Drinks not included. Not available with online ordering. Subject to availability. Shake Shack reserves the right to amend or withdraw this offer at any time without prior notice.