1.
Start by seasoning your steak with salt and pepper and a dash of olive oil on both sides. Then heat your griddle pan until it is really hot and it’s starting to smoke.
2.
Place the steak on the pan and leave it to cook. You can turn it once at a different angle to get nice marks on the steak but do not keep turning it over.
3.
I have included some guidelines on cooking times.
These are based on a 2 cm thick steak:
Blue: 1 minute each side
Rare: 1½ minutes each side
Medium rare: 2 minutes each side
Medium: 2 1/2 minutes each side
Medium-well done: 3 minutes each side.
4.
Once you have cooked both sides, take the steak off the heat and leave to rest for 3 minutes. Whilst it is resting you can make the dijonaise.
5.
Spread a layer of mustard on top of the steak and then sprinkle a good heap of Demerara sugar on top. Flatten the sugar down so it is even then get your blowtorch on it or put it under a hot grill. Keep the heat on until the sugar goes golden to dark brown and is bubbling.