"Cannoli" is the plural of "cannolo," which is a Sicilian pastry consisting of a crisp pastry tube filled with sweetened ricotta. The ricotta filling is sometimes sprinkled with crushed pistachios, chopped candied citron or orange peel, or semi-sweet chocolate chips. It's a popular item in Italian-American bakeries.
I'll have a dozen cannoli. But please make up some fresh ones. I don't want any that were already filled an hour ago.