Step 1

In a large bowl, whisk together the red wine, vegetable oil, black pepper, salt, soy sauce, Worcestershire sauce, garlic, and lime juice.

Step 2

Place the flank steak in a large resealable bag and pour in the marinade, turning the meat to coat. Push out as much air as possible and seal the bag. Marinate in the refrigerator for 8 hours.

Step 3

When ready to cook, set the Traeger temperature to 225°F and preheat with the lid closed for 15 minutes.

Step 4

Remove the steak from the marinade and place directly on the grill grates. Close the lid and smoke for 3 hours.

Step 5

Remove the steak from the grill, wrap in foil, and let it sit for 10-15 minutes. Increase the Traeger temperature to 450°F and preheat with the lid closed.

Step 6

Meanwhile, make the chimichurri: Add the cilantro, garlic, olive oil, red wine vinegar, lime juice, red onion, pepper, and salt and pulse until combined.

Step 7

Unwrap the steak and return to the grill. Close the lid and sear until the internal temperature reaches a [medium rare steak temp](https://www.traeger.com/learn/steak-doneness) of 130°F and grill marks appear, about 3 minutes per side.

Step 8

Remove the steak from the grill and slice into pencil-wide slices against the grain. Serve with the chimichurri sauce. Enjoy!