Ingredients

• 1/2 cup soy sauce
• 1/4 cup rice vinegar (not seasoned)
• 1/3 cup chopped scallion
• 2 tablespoons sugar
• 2 tablespoons minced garlic
• 2 tablespoons minced peeled fresh ginger
• 1 tablespoon Asian sesame oil
• 1 1/2 teaspoons Asian chili sauce
• 1 3/4 pounds skirt steak
• 2 small red apples such as Gala
• 1 firm-ripe mango, peeled and pitted
• 2 tablespoons fresh lime juice
• 1 teaspoon Asian chili sauce, or to taste
• 60 (3- to 4-inch-long) Bibb lettuce leaves
• Toasted sesame seeds

Instructions

1. Stir together marinade ingredients and reserve one fourth of marinade for sauce.
2. Marinate steak, then broil: Put steak and remaining three fourths of marinade in a glass dish, turning steak to coat, and marinate at room temperature, turning once, 30 minutes. While steak is marinating, cut apples and mango into 1- by 1/4-inch sticks. Toss together with juice and chili sauce and season with salt. Preheat broiler. Broil steak on rack of a broiler pan 2 to 3 inches from heat until slightly charred, 2 to 3 minutes on each side for medium meat. Let steak stand 5 minutes. Cut crosswise into 1/4-inch-thick slices, then halve slices crosswise. Toss beef in reserved marinade with salt and pepper to taste and divide among lettuce leaves. Top with fruit and sesame seeds.
3. Put steak and remaining three fourths of marinade in a glass dish, turning steak to coat, and marinate at room temperature, turning once, 30 minutes. While steak is marinating, cut apples and mango into 1- by 1/4-inch sticks. Toss together with juice and chili sauce and season with salt.
4. Preheat broiler.
5. Broil steak on rack of a broiler pan 2 to 3 inches from heat until slightly charred, 2 to 3 minutes on each side for medium meat. Let steak stand 5 minutes. Cut crosswise into 1/4-inch-thick slices, then halve slices crosswise. Toss beef in reserved marinade with salt and pepper to taste and divide among lettuce leaves. Top with fruit and sesame seeds.