If you can't find an Argentine one, you can use chili from other countries (Mexico, India, Italy) chopped in the same way. You can also get non-spicy crushed red pepper. Finely chop a garlic clove ...
Combining chimichurri with pizza isn't the traditional way to serve it, but this fusion makes sense as Italian food is a big ...
(Just ask the founder of Talenti, who built a retail empire following an Argentine helado recipe). And there's no greater treat than having it delivered, as is tradition on a Buenos Aires summer ...