FLANK STEAK SALAD WITH FRISéE AND CHARRED PEPPER SALSA

Flank Steak Salad with Frisée and Charred Pepper Salsa image

Provided by The Bon Appétit Test Kitchen

Time 30m

Yield Makes 4 servings

Number Of Ingredients 10

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1 flank steak (about 1 pound 10 ounces)
Kosher salt and freshly ground black pepper
1 fresh poblano chile
1 Fresno chile or red jalapeño
1 medium onion, sliced into 1/4"-thick rounds
4 tablespoons vegetable oil, divided
3 cups (packed) frisée
3 tablespoons balsamic vinegar
2 teaspoons honey
Ingredient info: Dark-green poblano chiles are available at better supermarkets and at specialty foods stores and Latin markets.

Steps:

Preheat broiler. Line a rimmed baking sheet with foil. Season steak with salt and pepper; set aside.
Place chiles and onion on prepared sheet and brush with 2 tablespoons oil. Broil vegetables, turning once, until charred and soft, about 8 minutes. Transfer chiles and onion to a medium bowl and cover with plastic wrap. Let vegetables steam in covered bowl for 10 minutes.
Meanwhile, line a platter with the frisèe. Heat remaining 2 tablespoons oil in a large cast-iron or other heavy skillet over medium-high heat. Add steak to skillet and cook, turning once, until browned and cooked to desired doneness, about 10 minutes for medium-rare. Transfer steak to frisée-lined platter; let rest. The heat from the steak will wilt the greens slightly.
Peel chiles. Cut in half and remove seeds; cut out core. Finely chop chiles and onion and transfer to a small bowl. Add vinegar and honey to chiles and stir to coat well. Season salsa to taste with salt.
Transfer steak to a work surface and thinly slice crosswise against the grain. Return sliced steak to platter, arranging over wilted frisée, and spoon charred pepper salsa over.