Delicious Retro Classic Beef Stroganoff Ingredients 750g fillet steak 70g butter 2 shallots, finely sliced 1½ tbsp hot Hungarian paprika, plus extra, to serve 400g button mushrooms, finely sliced 4 tbsp sunflower oil 450ml sour cream handful of chopped fresh parsley, to serve Method Cut the steak into slices. Heat the butter in a frying pan and cook the shallots until ...