Chimichurri sauce is a bright, herby, garlicky Argentinian sauce—usually uncooked—made with parsley, garlic, olive oil, vinegar, and spices, most famous as a partner for grilled meats.

What chimichurri sauce is

  • A fresh herb sauce that originated in Argentina and Uruguay.
  • Traditionally served with grilled beef and other asado-style meats, but now used on chicken, fish, and vegetables too.
  • Typically green (chimichurri verde), with a red version (chimichurri rojo) that includes ingredients like red pepper or tomato.

Think of it as Argentina’s answer to pesto: lots of herbs, oil, and garlic, but tangier and a bit spicy.

Core ingredients and flavor

Most classic recipes share the same backbone:

  • Fresh flat-leaf parsley (the main herb)
  • Garlic , finely minced
  • Olive oil (sometimes other neutral oils)
  • Red wine vinegar or lemon juice for acidity
  • Oregano (fresh or dried)
  • Chili flakes or fresh chili for mild heat
  • Salt and black pepper

Variations may add cilantro, onion or shallot, cumin, paprika, or bell pepper, but the sauce stays herby, tangy, and slightly spicy.

How it’s used

Chimichurri is very versatile:

  • As a table sauce spooned over grilled steak, lamb, chicken, or fish
  • As a marinade for meat or vegetables before cooking
  • As a drizzle on roasted potatoes, grilled vegetables, or grain bowls
  • As a punchy spread in sandwiches or on toasted bread

A professional chef on a cooking forum describes chimichurri verde as “an uncooked salsa composed of oil, parsley, and salt” at its core, with garlic and acid almost always present.

Quick ingredient table (classic green chimichurri)

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Component Typical ingredients What it adds
Herbs Flat-leaf parsley, sometimes cilantro, oregano Fresh, green, slightly bitter flavor
Aromatics Garlic, sometimes onion or shallot Pungency and depth
Fat Olive oil (or sunflower/corn oil) Rich mouthfeel, carries flavor
Acid Red wine vinegar or lemon juice Tanginess, balances the oil
Heat & spice Chili flakes or fresh chili, black pepper, cumin or paprika (optional) Warmth, gentle spice, smokiness
Salt Coarse or table salt Brings all the flavors together

Mini how-to (story-style)

Imagine you’ve just grilled a simple steak or tray of veggies and they look good but not exciting. You grab a bunch of parsley from the fridge, chop it fine, mince a couple of garlic cloves, and stir them with olive oil, a good splash of red wine vinegar, chili flakes, oregano, salt, and pepper. In under 10 minutes you’ve turned that plain plate into something that tastes like a backyard asado in Buenos Aires.

TL;DR: Chimichurri sauce is a raw Argentinian herb-and-garlic sauce with parsley, oil, vinegar, and chili, best known as a bright, tangy topping or marinade for grilled meats and veggies.

Information gathered from public forums or data available on the internet and portrayed here.