3 argentinian steak sauce Recipes

vegetable oil, red onion, cut into 1/2 inch thick rounds, salt & pepper, to taste, flank steaks, chimichurri sauce, parsley , packed, garlic cloves, peeled, olive oil, red wine vinegar, red pepper flakes, table salt

lightly packed chopped parsley (ideally, flat leaf italian parsley), garlic, minced, salt, freshly ground pepper, chili pepper flakes, fresh oregano leaves (optional), shallot or onion, minced, vegetable or olive oil, sherry wine vinegar , or red wine vinegar, lemon juice, cayenne pepper, salt, rib-eye , new york strip, or sirloin steak, 1 1/2 inches thick, baguettes, sliced into 1/4-inch-thick slices