2 tbsp olive oil
3 tbsp tequila
3 tbsp freshly squeezed orange juice
1 tbsp freshly squeezed lime juice
3 garlic cloves, crushed
2 tsp chili powder
1 tsp dired oregano
salt & pepper
4 sirloin steaks
Place the oil, tequila, orange and lime juices, garlic, chili powder, cumin, oregano, and salt and pepper to taste, in a large, shallow, non metallic dish and mix together. Add the steaks and turn to coat in the marinade. Cover and let chill in the refrigerator for at least 2 hours or overnight, turning occasionally.
Preheat the barbecue and oil the grill rack. Let the steaks return to room temperature, then remove from the marinade. Cook over hot coals for 3-4 minutes on each side for medium, or longer according to taste, basting frequently with the marinade. Serve at once.