Currywurst

Currywurst is a German dish. It is made from a pork sausage (), sliced and covered in a "curry sauce" (usually ketchup or tomato paste blended with curry) and generous amounts of curry powder. 
Currywurst is often sold as a take-out/take-away food, Schnell-Imbisse, at diners or "greasy spoons," on children's menus in restaurants, or as a street food.
Berlin legend says that Herta Heuwer, from Königsberg, invented the currywurst sauce by experimenting at her stall in Berlin-Charlottenburg in 1949.
People from the Ruhr-area say that the sauce was accidentally invented by a sausage stall owner in Essen, who dropped a can with curry powder into some ketchup. 
Early in his career German pop singer Herbert Grönemeyer, raised in Bochum, wrote a song, in the Ruhr dialect, to currywurst.
Although Berlin claims currywurst as its invention and "national dish", all over Germany, there are more than 20 different types of currywurst.