Kartoffelsoße (potato sauce) the way my Austrian Grandmother used to make it. This is a frugal warming dish, best served, in my opinion, served with good quality sausages and cabbage or broccoli, though any green veg will do.
The recipe requires Maggi® Würze (Maggi® seasoning sauce), which in Austria and Germany is everywhere - in the UK, Sainsbury's stock it. It's an excellent sauce, not only for this dish, but it works with soups, rice, noodles. If you can't get Maggi®, perhaps Worcestershire Sauce or something similar would work.