Chimichurri is a traditional tangy herb sauce from Argentina that's usually paired with grilled meat. Set aside half of the flank steak for Steak Panzanella another night.
Place first 7 ingredients in a food processor; process until finely minced. With processor on, slowly pour oil and 1 tablespoon water through food chute; process until well blended. Serve sauce with Garlic-Rubbed Flank Steak.
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