Recipes Ingredients Meat & Poultry Beef Recipes Soy-Marinated Flank Steak 3.4 (393) 2 Reviews By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on May 16, 2017 Print Share Share Tweet Pin Email Prep Time: 25 mins Total Time: 25 mins Servings: 6 Serve these flavor-packed steaks with Tomato Salad with Olives and Lemon Zest or Marinated Zucchini with Mint. Ingredients 1 cup soy sauce ¼ cup packed light-brown sugar 3 tablespoons cider vinegar 1 tablespoon Worcestershire sauce 2 teaspoons Dijon mustard 1 teaspoon red-pepper flakes ¼ teaspoon ground pepper 1 flank steak (about 2 pounds) Vegetable oil, for grates Directions In a 9-by-13-inch baking dish, whisk together soy sauce, sugar, vinegar, Worcestershire, mustard, red-pepper flakes, and pepper. Place steak in dish and cover dish tightly with plastic wrap. Swirl dish so that marinade coats the top of steak. Refrigerate 1 to 2 hours, turning steak occasionally. Heat grill to high. Remove steak from marinade, letting excess drip off. Pour marinade into a saucepan and simmer over medium-high heat until reduced by half, about 10 minutes. Clean and lightly oil hot grates. Grill steak, covered, 6 minutes; turn, brush with glaze, and grill until medium-rare, 6 minutes more. Let rest 8 to 10 minutes before slicing. Print