1.Preheat a covered barbecue with all burners on low and hood closed until temperature reaches 180°C/350°F, or follow manufacturer’s instructions.
2.Season ribs. Place ribs in a large ovenproof dish. Place dish on barbecue; turn burners off underneath dish, leaving other burners on low. Cook with the hood closed for 2 hours, turning occasionally, or until tender (the ribs will be medium rare). Adjust the heat to maintain the temperature at about 160°C/325°F. Heat barbecue grill over high heat. Transfer ribs from dish to grill; cook for 2 minutes each side or until browned. Return ribs to dish; rest, covered, for 10 minutes.
3.Meanwhile, make chimichurri.
4.Serve ribs with chimichurri.
5.Blend or process ingredients until chopped finely. Season to taste. Transfer to a bowl or jar; cover tightly. Refrigerate until needed.
Season the ribs and cook on a barbecue grill over a medium-high heat until browned both sides and done as desired. Chimichurri is also a delicious sauce for beef steaks such as rib-eye on the bone, scotch fillet, sirloin, rump, t-bone or skirt.