Prepare & trim steaks (thickness approx 1" or 2.5cm, if not as thick then looking at 3 or 3.5 mins a side). Drizzle a very little olive oil across both sides of steak (some people don't recommend this but I like it) and flavour liberally on both sides with spices. Leave to marinade in the fridge for several hours at least.
Half an hour before cooking, take out of fridge to allow meat to come to room temperature.
Pan-sear 4 minutes a side for a medium steak, flip halfway through. Rest under foil for five minutes before slicing.