O.K., go and buy the steak of your choice. dredge in dry mustard on both sides. Drizzle with a little Worchestershire and some fresh squeezed Lime juice. Throw on some Salt & Pepper and maybe a little more mustard powder and let sit and percolate for 15-20 minutes while you have a beer and preheat the grill. Toss this bad boy on and grill to desired doneness turning only once and skipping those cool grill marks. You don't want to dislodge the crust you have so lovingly built...I love mine rather rare. Eat. Try not to eat too much because this is way too tasty!