Ingredients
- 1/4 cup soy sauce
- 1 tablespoon dried ground ancho chile (or 1 tablespoon chili powder)
- 2 teaspoons ground cumin
- 1 tablespoon dried oregano
- 1/4 cup lime juice
- 2 tablespoons sugar
- four cloves garlic
- 1/4 teaspoon cayenne pepper
- 1/2 cup chopped fresh cilantro leaves
- 1/3 cup oil
- 1 large yellow onion, finely diced
- 12 to 16 flour tortillas, warmed
- 2 whole limes, cut into wedges
- Salsa, sour cream, and/or guacamole for serving
Procedures
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Combine soy sauce, ground chile, cumin, oregano, lime juice, sugar, garlic, cayenne, and 2 tablespoons cilantro leaves in a medium bowl. Whisk until sugar is dissolved. Slowly add oil, whisking constantly. Place flank steak inside a gallon-sized zipper-lock bag with marinade. Press out air, seal bag, and allow meat to marinate, turning occasionally, for at least 1 hour and up to 12.
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Remove steak from marinade and pat dry with paper towels. Ignite a large chimney full of coals and wait until they’re covered in grey ash. Spread evenly over 1/2 of grate, leaving the other half empty. Put the cooking grate in place, cover, and allow grill to preheat for 5 minutes. Scrape cooking grates clean, then place flank steak over hot side of grill. cook until well charred, about 3 minutes. Flip steak and continue to cook until second side is well charred, about 3 minutes longer. Transfer steak to cooler side of grill, cover, and cook until the center of the steak registers 125°F on an intant-read thermometer for medium-rare, or 135° for medium, about 5 minutes longer. Transfer to a cutting board, tent with foil, and allow steak to rest for at least 5 minutes.
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Slice steak thinly across the grain, then cut each slice into 1/2-inch pieces. Serve immediately with warm tortillas, diced onions, chopped cilantro, lemon wedges, and salsa as desired.