3 broiled chimichurri sauce Recipes

steak , london broil and rib eye work well, red wine vinegar , plus, red wine vinegar, extra virgin olive oil , plus, extra virgin olive oil, flat-leaf italian parsley, stems removed , 1 bunch, garlic cloves, peeled, shallot, peeled and chopped, lemon juice, paprika, preferably smoked, kosher salt, fresh ground black pepper , 5 grindings from a mill

flank steaks, kosher salt, ground coriander, ground cumin, black pepper, garlic, minced, fresh cilantro, fresh flat leaf parsley, white vinegar, olive oil, cayenne (or 1 diced , seeded jalapeno)