Please the steak either into a glass dish or a bag that is sealable.
Now combine the rest of the ingredients above in a bowl or a jug and whisk thoroughly.
Once you have combined all the ingredients above together you then pour of the steak and leave to marinate for between 1 and 12 hours.
When you are ready to cook the steak you should get your barbecue heated up and cook it over a medium to high heat.
When the barbecue is at the right temperature you should remove the steak from the marinade and place it on the grill cooking it on each side for between 5 and 7 minutes if you like it medium.
Any leftover marinade should be discarded and once the steak is cooked to the way you or your guests like it you can now remove it from the heat and serve.