Chef John's Chimichurri Sauce is a vibrant and flavorful sauce that originated in Argentina. Made with fresh herbs, garlic, vinegar, and olive oil, this sauce is perfect for marinating meats or as a condiment for grilled dishes. The combination of parsley, cilantro, and oregano gives it a refreshing and zesty taste. It can be used as a marinade for steak, chicken, or seafood, or simply drizzled over grilled vegetables. This versatile sauce adds a burst of flavor to any dish.