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Please note, if you're under 18 you're not permitted into Kongs or Burger Theory

Theoretically the best burgers in town? We'll let you be the judge of that, but they're certainly up there. Get down to Kongs on St Mary Street, where the fabulous Burger Theory are in residence. 

With this Wriggle, you'll choose one of the following burgers: 

  • The Cheese Theory: beef patty, crispy bacon, smoked cheddar, house pickles, dijonnaise, house ketchup
  • The Sheriff: beef patty, crispy bacon, smoked cheddar, onion rings, BBQ sauce
  • The Blue Cow: beef and jalapeño patty, crispy bacon, blue cheese, chipotle mayo, house ketchup
  • The Don: beef, garlic, oregano and chilli patty, pepperoni, pizza sauce, melted mozzarella, rocket
  • The KFC: Korean fried chicken breast with Frank's hot sauce and cool blue cheese dressing or BBQ sauce
  • The Prairie Girl: southern fried chicken, sticky chilli glaze, spring onion, salted peanuts
  • The Southern Hippie: southern fried portobello mushroom, halloumi, Franks hot sauce and cool blue cheese dressing or BBQ sauce (veggie, can be vegan)

All burgers come served with excellent skin-on fries, too – yay!


About Burger Theory @ Kongs Cardiff

After some theoretical burger awesomeness? You've come to the right place, oh hungry Wriggler. Rory and Oliver are the burger-theorists behind "Burger Theory", and they've concocted a menu to turn heads and tantalise tastebuds. Their portions are generous, their flavour combinations are experimental and their eccentricity makes a real statement. Craziness aside, there is a connecting theme here: all the burgers are big and all the burgers are juicy. You bite these burgers, and they damn sure bite back. It's hard to pick just one to recommend. Of the beef variations, the Blue Cow, the Don and the Sheriff all stand-out. The Prairie Girl is a stunning deep-fried chicken burger - and the Veggie Burger ("Rory's Best Ever Veggie Cheese Burger") is one of the best veggie burgers that team Wriggle have tasted. Period. The chips are bang-on, too. Crunchy, salty and oh-so-moreish. If you're on a quest to find the best burger in Cardiff, then you pay a visit to these newcomers. They'll put a burger in your mouth and a big old smile on your face.

How to claim

Purchase through Wriggle, then arrive within the window of opportunity - introduce yourself as a Wriggler to the bar staff at Kongs with a smile and show your unique Wriggle code to redeem your tasty, tasty burger. Remember to pay for any extras you buy, tip accordingly and leave feedback when we email you the next day for your chance to win £20 credit and to help our partners keep improving. Wriggle responsibly - over 18s only, please.
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