2 steaks
2 tbsp grain dijon mustard
2 tsp lemon juice
4 garlic cloves, crushed
2 tbsp mixed herbs - thyme, parsley, oregano
2 tsp salt
4 tbsp olive oil
Method
Trim any excess fat off the steak and with the tip of a knife make diagonal cuts on it. Score the edges, so that the steak does not curl up during cooking.
Mix the remaining ingredients together and marinate the steak in this mixture, rubbing the marinade well into the gashes. Cover and refrigerate for 6-8 hours or overnight.
Place the steak on the grill and let it sear for about 3 minutes. Give it a quarter turn and let it sear for another 2-3 minutes. Repeat for the other side. Cooking time will depend upon how well done you want the steak. Brush occasionally with marinade during cooking.
Leave the steak to rest for a minute or two before serving, as this will allow the juices to settle back in the meat.