Hot dogs. Probably the world's most popular fast food, and by far the ruler of Scandinavian street food. The three Scandinavian countries all have their own varieties and local traditions, but they all have one thing in common: They absolutely love hot dogs. From boiled to grilled, with or without condiments, homemade or bought at the local hotdog pusher; Scandinavians jump on every chance they get to grab a dog. More