Eating fries is pretty essential in Amsterdam, and while there is surprisingly little variation in town, the real spin is in the dozens of sauces. And yet the friethuisjes frequented by most usually list the same ones from the mayo-like frietssaus to the nutty oorlog. Not at Ter Marsch though, which has one that’s topped with black truffles, parmesan, dried sausage, and fried parsley. Get a portion to go at their Kalverstraat outpost or have a heavier sit-down meal at their Vijzelstraat location where the burgers are also worth a try.