PREPARATION
Combine all ingredients except steak in a small microwave-safe bowl. Microwave at HIGH 20 seconds to soften cubes. Pour mixture over steak in a large shallow nonaluminum baking dish or plastic bag and turn to coat. Cover, or close bag, and marinate in refrigerator about 30 minutes.
Remove steak from marinade, discarding marinade. Grill or broil steak 10 minutes or to desired doneness. Let rest 10 minutes before slicing. Garnish with crumbled queso fresco cheese.