Combine the vinegar, garlic and a generous pinch of salt in a blender and blend on low until smooth. Add the parsley, cilantro, oregano, ice and jalapeno and blend on medium speed. With the blender running, slowly drizzle in the olive oil and puree until smooth, about 1 minute, stopping to scrape down the sides if necessary. Season the chimichurri with more salt and pepper and transfer to a serving bowl, cover with plastic and refrigerate until ready to serve.