Chimichurri is a delicious garlicky herb sauce that is served with grilled meats, especially in argentina. Chimichurri is made with minced garlic, finely chopped parsley, salt, vinegar (sometimes) and lots of olive oil. It's excellent with meat, fish, and vegetables alike. Chimichurri sauce can also be converted to a creamy dip for vegetables, chips, or crackers, with a bit of mayonnaise and sour cream. Adding some creamy avocado gives it more great flavor. This dip makes a great sandwich spread.