I grew up in an area heavily populated with Portuguese people, so fairs and festivals (many religious in nature) always consisted of lots of traditional Portuguese food.
For 15 cents you could get a cup of tramousses. Love that stuff. Or a container of favas.
Chourico or linguica sandwiches were always available at any fair or festival in the area.
Malasadas are my favorite, my grandmother made these for Easter, but you could always get them during fairs and festivals. To the untrained eye they may resemble fried dough but let me assure you they are not. They are DEEP fried dough and that makes all the difference. While it usually has to be Easter or a festival to get them, malasadas are always available at the Portuguese Bakery on Commercial St. in Provincetown, which is a little bit like being at a fair or on Sunday morning at Tony's Bakery in Fall River.
Hard to get this stuff in Montreal even though there is a Portuguese section that has some delicious food. Just not the same food I grew up with. For example the natas here are awesome. And the peri peri chicken fabulous. No chourico or linguica though but you can buy chorizo, which to my mouth is not really the same, but good.
Oh and another rather unique and quite delicious treat you could always get at fairs or festivals where I grew up is the oft misunderstood chow mein sandwhich.
I may have digressed a tad here and there. Sorry about that.
Damn, I'm really hungry and I'm sort of specifically hungry which is harder to feed than just plain hungry.