Spread the butter directly onto the steak and fry for 2 minutes on each side. Cover loosely with foil, rest and keep warm. For the sauce, add the stock to a saucepan, bring to the boil and cook ...
Meanwhile, for the sauce put the vinegar ... Do not over-fill the pan or leave unattended). Meanwhile, pat the steak dry with kitchen paper. Head a griddle pan for several minutes over a high ...