Sprinkle the skirt steak on both sides with 1½ teaspoons kosher salt.
3 lbs skirt steak, 1¾ teaspoons kosher salt,
Combine the garlic and red wine vinegar in a small bowl. Let sit for 5 minutes to mellow the flavors of the garlic.
4 garlic cloves,, 1 teaspoon red wine vinegar
Add the parsley, olive oil, and ¼ teaspoon salt. Stir to combine.
¾ cup chopped fresh parsley, ½ cup extra virgin olive oil
Grill the skirt steak for 2–3 minutes per side for medium, or until cooked to your liking.
Remove and let sit for 5 minutes.
Slice the steak against the grain. To do so, cut the entire steak into 4–5 inch pieces, then rotate 90°F to slice. You want your knife to be perpendicular to the lines you see running through the meat.
Transfer to a serving platter and top with half of the chimichurri sauce. Serve with the remaining chimichurri sauce.
Notes
Store any leftovers in the refrigerator for up to 5 days. This recipe also works with flank steak. You'll just need to cook it a bit longer since it is thicker.