Besides Hamburger, Frankfurter and Neapolitaner, do you have other foods that are named after a city in similar pattern? (i.e. -er)

Berliner: a jelly doughnut

Amerikaner: a kind of pastry

Not a food, but Pariser is another word for condom.

Edit: Note that many of these depend on the regional dialect. People in Berlin say Pfannkuchen instead of Berliner.