A flavorful combination of red chile & cilantro in this Argentian chimichurri sauce. Skirt steak is popular in Argentina, if you can't find Skirt steak, you can substitute flat iron or flank steak. It is best to grill the steak to medium or medium rare. This comes from the Williams Sonoma Latin Cookbook. I am posting for ZWT 7; South America.It is said that in the mid 1800s, an Englishman and bon vivant, Jimmy Curry arrived in Argentina, He quickly fell in love with the aroma and taste of the roasted meats and set about to create a spicy accompaniment to show his appreciation for the tasty barbecue. He gathered spices such as chili pepper, sweet red pepper, tomatoes, onions and garlic, and combined them with rosemary, oregano, thyme and salt.The sauce caught on quickly, and today has become the traditional sauce of Argentina.