Prosta Historia is almost superhero-like in its ability to hide its true identity. The swank Saska Kępa location and bistro décor – butcher block tables, carnations in mason jars, French music tinkling from the speakers – make you think a menu of salads and soups await. But crack the menu and you’ll see a selection of creative burgers you’d expect to find at a greasy spoon. The Bollywood burger arrives with curry mayo and chutney, while the more traditional New York burger (which has the more typical cheddar, bacon, red onion and pickles) is a revelation. Throw in the fact that Prosta makes their own buns and French fries and it’s safe to say Warsaw has a king of the beef patty.