Polpo bollito is boiled octopus sold at Palermo's markets, from large pots at Ballarò and among the seafood of the Vucciria; it is one of the foods eaten at the Festino di Santa Rosalia.
Italian Wikipedia lists boiled octopus, 'u purpu, among the traditional foods of the Festino di Santa Rosalia, beside babbaluci, pasta con le sarde and sfincione. Palermoviva reports large pots of boiled octopus at Ballarò market, next to boiled potatoes, fresh ricotta and boiled artichokes, and a food guide recommends boiled octopus among the seafood of the Vucciria.