For the spice rub
1 tsp cumin
1 tsp garlic powder
1 tsp salt
optional: try a pinch of cinnamon, or a 1/2 tsp of sage or other dried herb that strikes your fancy.
Steak: This amount of rub is good for about 1 to 1 1/2 pounds of steak. If you have more steak, increase the rub ingredient proportionally. We've enjoyed this with sirloin, porterhouse and ribeye.
Method: Combine all of the rub ingredients. Rub it evenly onto both sides of the steak, and let it sit out at room temperature for 15 to 20 minutes. Pre-heat your grill on medium high, spraying with cooking oil first. Put the steak on the grill, over direct heat, and close the grill. Cooking time depends on preference and thickness. I find the steaks I get come out with a nice medium rare to medium doing 5 to 6 minutes per side.
Remove the steak from the grill a bit ahead of your optimal doneness as it will continue to cook. Let it rest on a serving platter for a couple of minutes. Serve drizzled with the juices that build up on the platter. Enjoy with the a big red wine of your choice! Cabernet Sauvignon is a natural choice with steak, but a Zinfandel can also be a nice match for the spices here.
Beef with this rub also can be a good base for steak tacos, as shown below.