flippin' burgers is pretty good, ever been? also flying elk in gamla stan has a pretty good burger too but it was a tad over-hyped imo.
I may be seen as a traitor to The Burger Cause.. but I'm actually a vegetarian.
For me a burger is a lot about the topping and meat flavour is unwanted.
Gamla Stan is too much of a overpriced tourist trap for me to eat there often. I used to work in Gamla Stan so I have had lunch practically everywhere in that area, but I think that Flying Elk must have opened after I left.
I also tend to avoid hipster joints suffering from amerofilia...
Who puts beetroot on their burgers?
I've used
beetroot salad when I have been out of mayonnaise. The beetroot is boiled and chopped, then pickled, then drained and mixed with mayonnaise. It is a classic condiment to Swedish meatballs, often on sandwiches and especially in Christmas time, so why not with a flat large meatball in a bun?
There is also a dish called "Biff a'la Lindström" which are fried patties of ground beef, mustard, pickled beet root (finely diced) and capers, often made also with an egg yolk in the batter to help keep it together. I sometimes do a vegetarian version of it. Would be an unusual taste for a burger though.