In a gallon size resealable bag, combine lime juice, crushed garlic, orange juice, cilantro, salt, pepper, olive oil, jalapeno, and vinegar. Mix well.
Add the flank steak to the resealable bag. Seal it tightly. Ensure that all the meat is exposed to the marinade. Refrigerate for at least 2 hours, or overnight.
Heat grill to high heat.
Remove the flank steak from the marinade, and discard excess marinade. Cook on the grill for 7 to 10 minutes per side.
Once done, remove from heat and let rest 10 minutes. Slice against the grain, and serve.
Carne Asada can be ruined by the last step of the process. The grain of the steak can be identified by lines in the meat... make sure to cut across the grain and not with the grain to insure a flavorful and tender experience.
4 tbls lime juice - preferably fresh
4 tsp. crushed garlic
½ cup orange juice
1 cup chopped fresh cilantro
½ teaspoon salt
¼ teaspoon black pepper
¼ cup olive oil
1 jalapeno, minced
2 tablespoons white vinegar
1 (2 pound) flank steak