Kongs of Kings Street

Burger Theory has taken over the Kongs of King Street kitchen! Come find us in our Bristol home 7 days a week. We’ll have our usual tasty selection of burger recipes but you can expect specials, sides, and desserts as well!

If the burgers aren’t enough to get you into Kongs then how about their epic beer offering, selection of old-school arcade games, table football and ping pong table!

Opening Times:

Monday -Thursday: 5-10pm
Friday – Sunday: 12am-10pm

Kongs 13-15 King St, Bristol BS1 4EF

Why not visit the Kongs of Kings Street website:

Check out the current menu here:
Kongs Menu

Our Story

Burger theory was founded by friends Rory Perriment and Oliver Thorogood, two very creative and enthusiastic burger chefs! In 2012 we started experimenting with different recipes and discovered there are hundreds of ways you can make a burger.

We decided that we would be ‘The Creative Burger People’ with no limits to what can and cannot go in to a burger. With the menu set we started taking our delicious culinary creations to festivals and food fairs around the country. We can now be found at weddings, street food events, music festivals and running pop-up kitchens in Bristol.

Whether it’s at our home in Bristol or on the road at one of Britain’s many food and music festivals, we love to make new friends – so come say hello. Lets see if we can put a burger in your mouth and a smile on your face!


Have a peak at one of our menus to see our burger selectioin. Be warned you may get a little hungry!

This is what it’s all about for us. Super delicious epic burgers!

The Cheese Theory
The Don
The Southern Bird
Ghengis Carn
6oz beef and bacon burger with melted smoked cheddar, gherkins, mustard mayo and burger theory tomato relish
6oz beef, bacon and pepperoni patty infused with garlic, chili and fresh oregano topped with pizza sauce and melting mozzarella
Chicken breast in a spiced crispy batter topped with melted cheddar onion rings and tomato and jalapeno relish
Crispy aromtic lamb with pickled carrot, cucumber, spring onions and soy, ginger and honey lamb jus
The Wild Thing
Blue Cow
Beefy Boy
The southern hippie
Wild boar, venison and apricot patty with sharp cheddar and salsa verde
Beef and jalapeno patty with melted Stilton and burger theory tomato relish
Slow cooked beef short rib, black pepper glaze, slaw and pickled cucumber
Southern fried portabello mushroom, fried halloumi, franks hot sauce and blue cheese dressing


We travel the length and breadth of the country serving up tasty creative culinary creations. We visit music festivals, food-fairs and fetés all over this burger loving nation. You can find out more about our 2016 events by following the links below:

Lattitude  | 14-17July | Website

It doesn’t get much more eclectic that latitude and the pink sheep just top it off!

Liverpool international music festival  | 21st-24th July | Website

We are headed to liverpool for this epic display of international tallent!

Leopalloza  | 29th-31st July | Website

Its the greatest house party… in a field! and we are invited!

Kaya festival  | 4th-7th August | Website

A fantastically diverse and child friendly festival set in the very beautiful Margam country park.

Keep an eye on this section for what’s coming up next!

We’re all finished up for the 2015 events season! :(

However never fear!
We already have a busy looking calendar for next year! :)

If you’d like us at your event in 2016 – get in touch!!


It’s official, we will be in residence at Kongs of king street for the foreseeable future! Here is a little video of the incredibly exciting moment when our logo went up on the wall!

If you’d like Burger Theory at your event/festival then get in touch via the contact form and we’d be happy to discuss what we can do for your event!


Latest Facebook Posts

Big news! The Golden Lion have invited us to re-open our kitchen at the pub! 7th October. Be there or be square. @GoldenLionBriz ... See MoreSee Less

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Lunch time just got better! ... See MoreSee Less

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Latest Twetter Feeds

burgertheoryuk @burgertheoryuk
Burger Theory UK  @burgertheoryuk
Big news! The Golden Lion have invited us to re-open our kitchen at the pub! 7th October. Be there or be square.... https://t.co/y0hhzGBI1l 


Welcome to our gallery page!

Here you can find some of our favourite photographs from the last few years doing pop-up catering at events all over the UK. What will the future hold? Who knows! Probably more burgers though!

Click on any image to zoom in…

Peanut cheesecake
The hairy beast

Like what you see? Follow us on social media using the buttons below…

Burger Philosophy

Our philosophy at Burger Theory is simple…

Good food doesn’t need to cost the Earth

We try to run our business with one key philosophy. We believe local is better. Better for the economy, better for the environment and most importantly, fresher. With the help of our suppliers we source some of the finest produce the southwest has to offer.

John Sheppard supplies us with 100% British Red Tractor certified meat. The Proper bread bakery provide our fresh bread from their traditional bakery. A.David supply us with local fresh vegetables and our all British dairy products come from Ashton Farms.

0% of our food is produced using GM produce, MSG or unsustainable food products like palm oil. We recycle as much as possible and only use compostable packaging.

We encourage people to take a break from meat by offering 5 vegetarian options as well as 4 vegan burgers. It works too! Over 22% of our customers eat our vegetarian burgers!

We try to reduce our carbon emissions as far as possible for a pop-up kitchen. We use clean burning gas to fuel our kitchen and use our van as little as possible.


We would love to hear from you!

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