Sicily is not a place where street food feels like a backup plan.
It is often the point.
The island's best eating days can happen without a reservation, a tablecloth, or a course that arrives on a plate. They happen standing near a market stall, eating something hot from paper, wondering if it is too soon to order another.
Palermo is the loud introduction
Start with panelle, the chickpea fritters that make no sense until they are hot, salty, and tucked into bread. Then find crocche, arancine, sfincione, and whatever the stallholder seems proud of that day.
Palermo markets are not gentle. They are theater, commerce, lunch, and local life happening at the same volume.
Catania brings the breakfast argument
In eastern Sicily, granita with brioche is not dessert pretending to be breakfast. It is breakfast.
Almond, coffee, lemon, pistachio, mulberry when the season is right: everyone has an opinion and most of them are correct.
Eat it slowly. Tear the brioche. Dip it. Understand that the day has already gone well.
Arancine versus arancini is not just spelling
The rice-ball debate changes by region, and people will correct you with feeling. In Palermo, you will often hear arancine. Around Catania, arancini is common.
The better rule is simpler: eat the one in front of you while it is still warm.
Build the day around appetite
Sicilian street food is best when you do not overplan meals. Leave space. Share things. Follow lines that look local. Return to the place you cannot stop thinking about.
The island rewards curiosity, but it rewards hunger more.