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Step-by-step instructions.
Mix the chimichurri
- Finely chop the parsley and mince the garlic by hand for a textured sauce.
- Stir together the parsley, garlic, olive oil, red wine vinegar, oregano, red pepper flakes, and the salt and pepper reserved for the sauce. Let stand for 15–20 minutes while preparing and cooking the steak. Taste and adjust the vinegar or salt.
Heat the grill and season
- Preheat the grill to about 450–500°F, leaving a cooler indirect zone available. Clean the grates.
- Pat the steaks thoroughly dry, coat lightly with avocado oil, and season both sides with the steak salt and pepper. Keep the chimichurri separate from raw meat.
Sear and finish
- Grill over direct heat for about 3–4 minutes per side to develop a browned crust. Turn with tongs.
- Check the center from the side with an instant-read thermometer. Move to the cooler zone if the outside browns before the center is ready. Allow roughly 8–16 minutes total depending on thickness, starting temperature, and grill heat.
- For the USDA-recommended finish, cook whole beef steaks to 145°F before removing from the heat, then rest at least 3 minutes. Use the thermometer rather than color or the clock.
Rest, slice, and sauce
- Rest the steaks for 5–10 minutes on a clean board. Stir the chimichurri again while the steaks rest.
- Slice across the grain and spoon some chimichurri over the steak just before serving. Pass the remaining sauce at the table; you do not need to use it all.
USDA recommends cooking whole beef steaks to 145°F before removing them from heat, followed by at least a 3-minute rest. Keep sauce for serving separate from raw meat and refrigerate the garlic-herb sauce promptly.
USDA temperature guidance

