This southern german recipe for potato saladwhich uses broth, vinegar, onions, and mustard for flavoringis a pleasant change to the one more often made using mayonnaise. The warm cooked potatoes are marinated in the beef broth is what adds a distinctive and rich flavor. The salad can be served lukewarm enlivening the taste, but it tastes even better the next day, having had time to develop. If not eating immediately, don't forget to refrigerate