From about.com, this recipe is based on the ever-popular hot German potato salad. Look for fresh wax beans at the farmers' market or use frozen. Can also be served at room temperature. If you happen to know of which famous Hot German this recipe is referring, would you kindly Zmail me? Green beans can also be substituted for the wax beans. Fresh beans! Fresh! Fresh! You know the rules. Use tempeh bacon for a vegan version.