When ready to cook preheat the broiler to high and move an oven rack 5-6 inches from the broiler. Line a baking sheet with foil and place the steak on the baking sheet, It might need to be cut into two pieces.
Place it under the broiler and cook for 3-5 minutes depending on the thickness of your steak and desired doneness. It should get nicely browned on the top. Then flip and cook an additional 3-5 minutes depending on how well done you want the steak.