Ingredients
2 cups fresh parsley leaves2 cups fresh cilantro leaves1 cup fresh mint leaves8 garlic cloves, chopped1-3/4 teaspoons kosher salt, divided1/2 teaspoon plus 3/4 teaspoon freshly ground pepper, divided2 cups olive oil2/3 cup red wine vinegar2 tablespoons lemon juice1/2 teaspoon crushed red pepper flakes4 pounds beef flat iron steaks or top sirloin steaks (1 inch thick)
Preparation
Place herbs, garlic, 1 teaspoon salt and 1/2 teaspoon pepper in a food processor; pulse until herbs are chopped. Gradually add oil, vinegar, lemon juice and pepper flakes, processing just until blended.
Sprinkle steaks with remaining salt and pepper. Grill, covered, over medium heat or broil 4 in. from heat 6-8 minutes on each side or until meat reaches desired doneness (for medium-rare, a thermometer should read 135°; medium, 140°; medium-well, 145°). Cut steaks into 1/4-in. slices; serve with sauce.
