Authentic Argentine Chimichurri Sauce From Scratch

If there is one sauce that defines Argentine BBQ culture, it is chimichurri. This bright green, herb-packed condiment is as essential to an asado as the fire itself. Whether you are grilling a juicy entraña (skirt steak), a whole chicken, or even vegetables, chimichurri brings everything to life with its bold, tangy, and garlicky character. The great news is that making authentic chimichurri from scratch requires no cooking, no special equipment, and only about 15 minutes of your time. Once you make it yourself, you will never reach for a store-bought bottle again.

What Is Chimichurri and Where Does It Come From?

Chimichurri is a classic Argentine and Uruguayan uncooked herb sauce used both as a marinade and a condiment for grilled meats. Its origins are debated — some food historians trace it back to Basque immigrants who settled in Argentina in the 19th century, while others link it to an Irishman named Jimmy McCurry who supposedly created the sauce and gave it a phonetically adapted Spanish name. Regardless of its true origin, chimichurri has become the undisputed crown jewel of Argentine culinary tradition. It appears on every asado table, at every family barbecue, and in every parrilla (steakhouse) from Buenos Aires to Patagonia. The classic version — known as chimichurri verde — is made primarily with fresh parsley, garlic, oregano, olive oil, and red wine vinegar. There is also a red variety called chimichurri rojo, which incorporates tomatoes and red peppers, but today we are focusing on the timeless green original.

Key Ingredients and Why They Matter

The beauty of chimichurri lies in its simplicity, but ingredient quality is everything. First and foremost, always use fresh flat-leaf parsley — never curly parsley, and absolutely never dried parsley. Flat-leaf parsley has a more robust, peppery flavor that holds up beautifully in the sauce. Garlic is the backbone of chimichurri; it should be fresh and finely minced by hand rather than blended, which can create a bitter, overly pungent paste. Oregano adds an earthy, slightly floral note — fresh is best, but dried oregano works well in a pinch and is actually traditional in many Argentine households. Extra virgin olive oil should be your fat of choice; it adds richness and carries all the herbal aromas beautifully. Red wine vinegar provides the essential tang that cuts through the fat of grilled meats and brightens every bite. Finally, ají molido — Argentine red pepper flakes — gives the sauce a gentle warmth without overwhelming heat. If you cannot find ají molido, standard crushed red pepper flakes work as a substitute.

The Secret to Perfect Chimichurri: Patience and the Knife

Many beginner cooks make the mistake of throwing all the chimichurri ingredients into a food processor or blender. While this produces a smooth, pesto-like sauce, it is not authentic chimichurri. The traditional Argentine method calls for hand-chopping all the herbs and mincing the garlic with a knife. This technique preserves the texture and individual character of each ingredient, resulting in a rustic, chunky sauce where you can see and taste every component. Another equally important secret is the resting time. After mixing your chimichurri, resist the urge to serve it immediately. Allowing the sauce to rest for at least 30 minutes — or ideally a few hours — at room temperature lets the garlic and herbs fully infuse the oil and vinegar. The flavors mellow, meld, and deepen into something truly extraordinary. Many Argentine cooks make their chimichurri the morning of an asado so it is perfectly matured by the time the meat hits the table.

How to Use Chimichurri Beyond the Grill

While chimichurri is most famous as a sauce spooned over grilled beef — particularly asado de tira (short ribs), vacío (flank steak), and choripán (chorizo sandwiches) — its versatility in the kitchen is remarkable. Try using it as a marinade for chicken thighs or pork tenderloin at least two hours before grilling to infuse the meat with herb and garlic flavor. It makes an outstanding dipping sauce for crusty bread at the start of your asado while guests wait for the main event. Chimichurri also works beautifully as a dressing for roasted vegetables, a topping for fried or poached eggs, or stirred into rice and grain bowls for an instant flavor boost. Even pizza — drizzled over a margherita straight out of the oven — gets a spectacular Argentine makeover with a spoonful of fresh chimichurri. Store any leftovers in a sealed glass jar in the refrigerator for up to two weeks. The olive oil will solidify when cold, so always bring the sauce to room temperature and stir it well before serving. With this recipe in your repertoire, you are ready to bring the spirit of the Argentine parrilla to your table any day of the week.