Ingredients
Equipment
Method
Make the chimichurri
- Finely chop parsley and cilantro (if using), mince the garlic and shallot, and place in a bowl; stir in 3 tablespoons red vinegar, 1/2 cup olive oil, 1 teaspoon oregano, 1/2 teaspoon red pepper flakes, and 1 teaspoon salt, then taste and adjust; let rest 20 minutes to meld flavors and refrigerate up to 3 days.
Marinate the steak
- Trim the skirt steak of excess silver skin and place in a shallow dish; whisk 2 tablespoons olive oil, 2 tablespoons soy sauce, 1 tablespoon red vinegar, 1 teaspoon brown sugar, 1/2 teaspoon black pepper, and 1 minced clove garlic and pour over the steak; marinate for 30 minutes to 2 hours at room temperature, no longer.
Cook
- Preheat a grill to high (about 500°F) or heat a 12-inch cast-iron skillet over medium-high until just smoking; remove steak from marinade and pat dry with paper towels to ensure a good sear.
- Place steak on the hot grill or skillet and cook without moving for 3–4 minutes per side for medium-rare (4–5 minutes per side for medium); check with an instant-read thermometer (130–135°F for medium-rare, 140–145°F for medium).
Rest and slice
- Transfer the steak to a cutting board and rest uncovered for 5–8 minutes; slice thinly against the grain and serve topped with chimichurri or with the sauce on the side.
Notes
Do not marinate skirt steak longer than 2 hours to avoid mushy texture; always pat meat dry before searing to get a crust. Make chimichurri ahead—its flavor improves after resting—and bring it to room temperature before serving. Store chimichurri separately and refrigerate up to 3 days; steak keeps 3–4 days in the refrigerator.
