Soy Sauce–Marinated Grilled Flank Steak and Scallions (2024)

    We're flipping the script and marinating after grilling. Inspired by the technique called escabèche, where cooked fish and meat are preserved in an acidic mixture, we're cooking first, marinating second—in this case, it's in a spicy-sweet soy sauce-brown sugar-Sriracha mixture. Because flank steak is flavorful but quite lean, take care not to overcook it (medium-rare is best) and be absolutely certain you’re slicing against the grain.

    Ingredients

    3

    Tbsp. extra-virgin olive oil, divided, plus more for grill

    lb. flank steak

    Kosher salt, freshly ground pepper

    1

    bunch scallions, trimmed

    ¼

    cup mirin (sweet Japanese rice wine)

    ¼

    cup soy sauce

    2

    Tbsp. light brown sugar

    1

    Tbsp. distilled white vinegar

    1

    Tbsp. Sriracha

    2

    tsp. toasted sesame oil

    Toasted sesame seeds (for serving)

    Preparation

    1. Step 1

      Prepare a grill for medium-high heat; lightly oil grate. Pat steak dry and place on a rimmed baking sheet. Lightly score both sides of steak with the tip of a paring knife, making shallow parallel cuts (no deeper than an ⅛") about 1" apart and running across the grain of the meat (this will prevent the steak from curling as it cooks). Season generously all over with salt and pepper; let sit at room temperature at least 30 minutes and up to 1 hour.

      Step 2

      Meanwhile, toss scallions on another baking sheet with 2 Tbsp. olive oil to coat; season with salt and pepper.

      Step 3

      Whisk mirin, soy sauce, brown sugar, vinegar, Sriracha, and sesame oil in a medium bowl until sugar is dissolved; set marinade aside.

      Step 4

      Pat steak dry again (the salt will have drawn out more moisture) and rub with remaining 1 Tbsp. olive oil. Grill scallions, turning often, until tender and charred in spots, about 1 minute. Return to baking sheet. Grill steak, turning every 2 minutes or so, until medium-rare, 6–8 minutes. Transfer to a cutting board and let rest 10–15 minutes.

      Step 5

      Thinly slice steak crosswise and arrange on a rimmed platter; drizzle all of the juices that have collected on the cutting board over. Arrange grilled scallions on top of the steak, then pour reserved marinade over. Let sit at least 15 minutes and up to 1 hour before serving. To serve, sprinkle with sesame seeds as desired.

    Soy Sauce–Marinated Grilled Flank Steak and Scallions (2024)

    FAQs

    What's the longest you should Marinate Flank Steak? ›

    How Long to Marinate Flank Steak. As long as your marinade mixture includes at least one tenderizing ingredient, you should get good results from a 24 to 48-hour soak in it. Soaking the meat beyond 48 hours will just leave the surface too soft and mushy.

    How long can steak marinate in soy sauce? ›

    Most recipes for marinating meat and poultry recommend six hours up to 24 hours. It is safe to keep the food in the marinade longer, but after two days it is possible that the marinade can start to break down the fibers of the meat, causing it to become mushy.

    What is the trick to cooking flank steak? ›

    The trick is to only cook for about 5 minutes on each side to medium rare. Any further and you'll risk overdoing it, turning your beloved flanks into hockey pucks. Allow resting for about 5 to 10 minutes before serving.

    What does soaking meat in soy sauce do? ›

    Soy sauce is a great replacement for or addition to salt when you're looking for an exceptional marinade. Soy sauce contains glutamic acid which reinforces the meat's flavor.

    Should you poke holes in flank steak before marinating? ›

    Marinades do not penetrate the meat deeply. Most of the tenderizing effect of a marinade will occur on the surface. Piercing the meat before marinating will give the greatest tenderizing effect.

    Does flank steak get tender the longer you cook it? ›

    Then, grill the steak until it's medium-rare. Flank steak is most tender at this level of doneness, and cooking it further can give it a chewy texture. Finally, let the steak rest for at least five minutes, and slice it against the grain.

    Why is my flank steak always tough? ›

    The critical reason for this is that flank steak, although lean and tasty, is tougher than other cuts of beef due to the many long, thin fibers running through it. To help tenderize flank steak, it is often marinated and cooked by grilling, stir-frying, broiling, or smoking.

    Do you rinse flank steak before cooking? ›

    The USDA also cautions against rinsing meat to cut down on the risk of cross contamination. "If you wash meat or poultry, some bacteria can be splashed on the surfaces of your kitchen. Failure to clean and sanitize these contaminated areas can lead to foodborne illness," the website states.

    How long to grill a flank steak? ›

    Follow the directions for how long to grill Flank steak. For the perfect medium-rare Flank steak, grill for 9–12 minutes, turning about 1 minute before the halfway point. A meat thermometer should read 130°F. Rest your Flank steak for 5 minutes before serving, covering lightly with foil.

    How much soy sauce per pound of meat? ›

    Start with a small amount and taste as you go. Beefier burgers – Add about a tablespoon of soy sauce per pound of ground beef when you're making burger patties to enhance their mouthwatering meatiness.

    Why do you put vinegar in soy sauce? ›

    In Asian cooking, vinegar is often used to cut saltiness from soy sauce or other ingredients. For me, balsamic vinegar has the perfect mix of sweetness, acidity, and body to combine with the brown sugar and soy sauce here.

    What makes soy sauce taste better? ›

    The better, more flavorful soy sauces are fermented longer, which allows the proteins in the soy (and wheat) to break down into the amino acids that lend the condiment its glutamate-rich content. Glutamates trigger the taste response we know as umami, or perception of savoriness.

    How long can flank steak marinate in the fridge? ›

    Marinade flank steak in the refrigerator for at least 4 hours or up to 24 hours, turning 2 to 3 times throughout. To cook, remove the steak from the marinade, shaking off any excess (discard the marinade). Cook to medium rare (130°F).

    Is 5 days too long to marinate steak? ›

    The same goes for meat. You can marinate chicken, steak, pork, and lamb for too long. And the meat doesn't like that at all. Generally speaking, you shouldn't marinate meat for more than a day.

    What's the longest you should marinate a steak? ›

    How long should I let steak marinate? Marinate steak for at least 1-2 hours in the refrigerator. However, for best results, use a steak marinade for several hours or overnight. The extra time allows the steak fibers to break down and tenderize before cooking.

    Can you leave steak in marinade for 48 hours? ›

    Most marinades call for 24 hours, but the U.S. Department of Agriculture's Food Safety and Inspection Service notes that you can marinate for up to five days. Experiment with different marinade ingredients to customize the flavor.

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