"Chimichurri truly is a wonder condiment and this is a perfectly balanced version, with a subtle tartness, nice background heat and addictive little pops of garlic and herbs. For the optional herb, oregano worked beautifully, but have fun playing with variations to match what you'll be drizzling it on -- rosemary with lamb, basil with fish, you name it. This tasted amazing over grilled hanger steak, as the base to a zingy salad dressing with a squeeze of lemon, and just with some good bread for dunking. - Kristen"