From time to time I receive e-mails asking some common questions for an Authentic Carne Asada recipe, the first one being how to marinate the meat. I always give out the same answer: every cook or grill master has their own unique way of seasoning their meat. I hope you enjoy this delicious recipe.
Place the flank steak in a large baking dish and, if using the sliced onion, spread the slices over the meat.
Light up your charcoal grill, or preheat your gas grill. (You can also use a cast iron grill pan, the ones you use over the stove top). And brush your grill with a little vegetable oil as this will prevent the meat from sticking.
Remove meat from marinade and pat dry. Place meat on the grill and cook for 8 to 10 minutes per side. (Cooking time will depend on the meat thickness and your personal preferences, either medium or well done). Remove meat from grill and place it on your cutting board. Slice it and serve it with corn tortillas and other garnishes mentioned above.