Beef stroganoff sits in a white tureen on a burlap napkin surrounded by fresh thyme and whole peppercorns - Polina Shurygina/Getty Images ...

For me, fillet is too expensive for stroganoff and I think strips of rump work equally well, if not better. My version also has the addition of a dried porcini mushroom. You can pick these up in ...

Add the vinegar and mustard and bring to the boil. Cook until the liquid has almost evaporated. Pour over the stock and cook for 3–4 minutes, or until slightly thickened.