If you've ever been to Germany, then you will be familiar with the ever present "Schnell Imbiss" stands. Similar to a hot dog stand, the Schnell Imbiss stand sells a variety of wurst dishes including the famous "Currywurst," a grilled bratwurst, cut into slices, and served with a ladleful of warm curry sauce. Curry sauce is also served over "pommes" (aka French Fries). This is the recipe, as told to me by a German Imbiss lady herself. It is really quite simple to make and keeps well in the fridge. The Imbiss stands always use mild curry powder to make this sauce. It tastes much better than the commerically prepared versions.