A lively, colorful dish for a warm weeknight. Prep and Cook Time: about 1 hour. Notes: Grill the steak at least 30 minutes and up to a day ahead (cover and chill). Dressing ingredients can also be blended up to a day ahead and chilled (stir well before using). Find salted fermented black beans in Asian markets.
1 flank steak (1 1/2 to 1 3/4 lbs.)
5 tablespoons soy sauce, divided
1 tablespoon vegetable oil
1 cup reduced-sodium chicken broth
1/4 cup rinsed and drained salted fermented black beans (see Notes)
3 tablespoons dry sherry
3 tablespoons minced fresh ginger
6 tablespoons rice vinegar
2 tablespoons cornstarch blended smoothly with 2 tbsp. water
1 1/2 tablespoons light brown sugar
1/2 cup salted peanuts
About 15 large leaves romaine lettuce
3/4 cup finely diced red bell pepper
1/2 cup thinly sliced green onions, including tops
1/2 cup cilantro leaves
How to Make It
Trim fat from steak. Rinse meat, pat dry, and rub with 1 tbsp. soy sauce and the oil.
Lay steak on an oiled cooking grate over a solid bed of very hot coals or highest gas heat (you can hold your hand 1 to 2 in. above grate for only 1 to 2 seconds); cover gas grill. Cook until firm when pressed on thin end but still quite pink inside (cut to check), 8 to 10 minutes; turn over halfway through. Transfer steak to a plate. Let cool at least 30 minutes.
On a board with a sharp knife, cut steak across the grain, straight up and down, into very thin slices, keeping slices in place. Cut steak lengthwise to divide the slices into halves or quarters.
Combine 4 tbsp. soy sauce, broth, black beans, sherry, ginger, vinegar, cornstarch mixture, and brown sugar. In a large frying pan, stir dressing over high heat until boiling. Add steak and juices; stir until hot, about 2 minutes. Remove from heat.
Put peanuts in a resealable plastic bag and coarsely crush with a meat mallet or bottom of a small, heavy skillet. Stack lettuce leaves and cut thinly widthwise.
Mound lettuce equally into 6 wide salad or soup bowls. Spoon hot steak and dressing onto greens; sprinkle with bell pepper, green onions, and peanuts. Garnish with cilantro and serve immediately.