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Best Flank Steak Marinade for Tender, Juicy Grilled Steak

Best Flank Steak Marinade for Tender, Juicy Grilled Steak


  • Author: Sarah White

Description

This flank steak marinade brings bold, savory flavor and ensures a tender, juicy steak every time—perfect for grilling or pan-searing.


Ingredients

Scale
  • ¾ cup low-sodium soy sauce
  • ¼ cup olive oil
  • ¼ cup packed brown sugar
  • 1 tablespoon apple cider vinegar
  • 1 tablespoon Worcestershire sauce
  • 2 teaspoons Dijon mustard
  • ½ teaspoon ground black pepper
  • 2 teaspoons chopped garlic (about 2 cloves)
  • pounds flank steak

Instructions

  1. Make the Marinade
    In a medium bowl, whisk together soy sauce, olive oil, brown sugar, apple cider vinegar, Worcestershire sauce, Dijon mustard, black pepper, and chopped garlic until fully combined.
  2. Marinate the Steak
    Place the flank steak in a large zip-top bag or shallow container. Pour the marinade over the steak, ensuring it is fully coated. Seal the bag or cover the container and refrigerate for at least 2 hours, preferably overnight for best flavor and tenderness.
  3. Preheat Your Grill or Pan
    When ready to cook, remove the steak from the marinade and let it sit at room temperature for 20–30 minutes. Preheat a grill or heavy skillet over medium-high heat.
  4. Grill or Sear the Steak
    Grill or pan-sear the flank steak for 4–6 minutes per side for medium-rare, depending on thickness. Use a meat thermometer if needed—130–135°F for medium-rare.
  5. Rest and Slice
    Transfer the cooked steak to a cutting board and let rest for 5–10 minutes. Slice thinly against the grain to maximize tenderness.
  6. Serve and Enjoy
    Serve hot with your favorite sides—try chimichurri, grilled vegetables, or a crisp salad.

Notes

Don’t skip resting time. This helps juices redistribute.

For a deeper flavor, marinate for up to 24 hours.

Always slice flank steak against the grain to avoid toughness.

Leftovers make great taco or sandwich fillings.