Defrost the steaks by placing them into a bowl of luke warm (not hot!) water still in their individual packaging. They should thaw in around 15 minutes depending on the thickness. Once thawed, remove the steaks from their packaging and dry them all over using a kitchen towel. Season well with good quality pure Sea Salt.
Take a castiron pan and heat it until it is very hot. Without adding any oil, place the steak in the centre of the pan.
Cook for three minutes on one side.
Turn over and cook for three and a half minutes on the other side, until the juices appear.
Turn over and cook for a further two minutes.
You could baste with herbs and butter for the last two minutes of cooking.
Cook for a total of eight and a half minutes, then rest uncovered for at least 10 minutes.