Knez Mihailova, Belgrade's main pedestrian street, has had roasted-chestnut carts on nearly every corner every winter for longer than most locals can remember.
Chestnuts are slashed, roasted over coals in a perforated drum, and scooped hot into paper cones. Vendors set up braziers along Belgrade's central boulevards from late autumn through winter.
Why it's made this way: Cheap, portable, and warming, roasted chestnuts became the default cold-weather street snack across the old Austro-Hungarian and Ottoman-adjacent cities of the Balkans, Belgrade included.