It is sometimes accompanied by a tub of curry sauce. The most common Chinese variety of curry sauce is usually sold in powder form. It is served in a mild curry sauce that includes butter. The fish balls are usually boiled in a spicy curry sauce. Currywurst, a dish of sausages with curry sauce, is a popular fast food in Germany. It is eaten by dipping it into hot sweet-sour soy sauce or curry sauce. Curry sauce occasionally includes sultanas or other dried fruits. It is prepared in a light curry sauce with coriander powder and cinnamon powder. They are often served with curry sauce, sweet and sour sauce or plum sauce. Nevertheless, the curry sauce mix is always poured directly onto the rice.