Currywurst is a German dish . It is a hot 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 a fast-food dish of German origin consisting of hot pork sausage cut into slices and seasoned with curry sauce ( regularly consisting of ketchup or tomato paste blended with curry ) and generous amounts of curry powder , or a ready-made ketchup-based sauce seasoned with curry and other spices .