In a small bowl, combine paprika, brown sugar salt. Use a small whisk to combine and then pat over steak on both sides. Let the steaks rest at room temperature for one hour before grilling.
In a small skillet, heat olive oil. Add garlic, onion and sautee until soft, about 3 minutes. Add the remaining ingredients to a small food chopper and give it a about 8 whirls, just enough to break apart the ingredients. Add remaining ingredients and keep warm to steep the flavors while you grill the steak.
Heat grill to high heat. I like to get it to about 500 degrees and then lower to 350. You should hear a strong sizzle when you add the steaks.
Cook steak about 7 minutes total, turning once. Meat thermometer should read around 135 degrees for medium rare. Let steak rest for 5-10 minutes tented with foil. Slice against the grain and top with relish.