most people would probably say poutine, but tbh that’s pretty basic and most places do it poorly anyway.
i’d say cold smoked salmon is really what people need to try, especially the traditionally made version done out on the west coast.
Come to Slovakia and try “Halušky” (read: Halushky) or Pirohy (something like pierogy, apparently)
Come to Czechia and try beer. Best beer you could find around this area
Not my country, but I tried guinea pig in Ecuador. It was surprisingly good.
Okroshka and borsh
Grew up in Hong Kong/Shanghai and have eaten almost every type of Chinese cuisine but everyone NEEDS to try ma la (麻辣). It’s a spicy seasoning that numbs and tingles the tongue and is unlike any other flavor profile. It’s put on all types of food here like hot pot, noodles, tofu, duck e.t.c. The best ma la comes from the Sichuan province in South West China.
Seriously, so good.