Grilled Steak and Peppers Vinaigrette
Also known as Italian Frying peppers. Cubanelle peppers are large and blocky. They are light green in appearance and they mature red. The thin walls of this pepper make it an excellent choice for frying. This pepper is not hot.
1 large bunch leeks (2 to 3 lbs, white and pale parts only)
2 Tbsp unsalted butter
1 3/4 cups reduced-sodium chicken broth
1 Turkish or 1/2 California bay leaf
3 thyme sprigs
2 lbs sirloin flap steaks
2 Tbsp plus 2 tsp olive oil, divided
4 Cubanelle peppers (Italian green frying peppers)
2 Tbsp red wine vinegar
2 Tbsp Dijon mustard
5 Tbsp extra-virgin olive oil
a large (2-burner) grill pan
Halve leeks lengthwise and cut enough crosswise into 1-inch pieces to measure 8 cups, then wash.
Simmer leeks, butter, broth, bay leaf, thyme, 1/2 teaspoon salt, and 1/4 teaspoon pepper in a 12-inch heavy skillet over medium heat, covered, stirring occasionally, until leeks are very tender, about 20 minutes. Uncover and boil until liquid has reduced to about 2 tablespoons. Discard bay leaf and thyme.
Meanwhile, heat grill pan over medium-high heat until hot.
Brush steaks with 2 tablespoons olive oil and season with 1 teaspoon salt and 1/2 teaspoon pepper. Grill steaks, turning once, about 8 minutes total for medium-rare. Transfer to a plate and let rest 15 minutes.
Meanwhile, halve and seed peppers and toss with remaining 2 teaspoon olive oil, 1/4 teaspoon salt, and 1/8 teaspoon pepper. Grill, turning once, until crisp-tender and lightly charred, 6 to 10 minutes total. Cut crosswise into 1-inch pieces.
Whisk together vinegar, mustard, 1/4 teaspoon salt, and 1/8 teaspoon pepper in a medium bowl. Add extra-virgin olive oil in a slow stream, whisking until emulsified. Add peppers.
Serve steaks over leeks with their juices, drizzle with meat juices from plate, and top with peppers and vinaigrette.
Makes 4 servings.