with bread and mustard
"Frankfurter", as Germans call them, are long, thin sausages that are flavourful, lightly smoked and made from pork. Traditionally, they are served with bread, yellow mustard, horseradish and sometimes with potato salad.
The name of "Frankfurter Würstchen" may only be used for sausages that are produced in the greater Frankfurt region. Butchers outside of this area have to call the sausages "Nach Frankfurter Art", which means "they are made like Frankfurters, but not in the Frankfurt area".