The BEST Flank Steak Marinade

The Best Flank Steak Marinade recipe is exactly what you need to make the perfect easy fajitas. Add this simple recipe to your family meal plan today!
Course Marinade
Cuisine American
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings 4
Calories 374kcal
Author April Woods


  • 1 cup olive oil
  • 3/4 cup soy sauce
  • 1/2 cup balsamic vinegar
  • 1/3 cup fresh lemon juice
  • 2 tablespoons stone ground mustard dry mustard works if you're in a pinch
  • 6 garlic cloves
  • 1 teaspoon ground black pepper
  • 1/4 cup Worcestershire sauce
  • 1/4 tablespoon onion powder
  • 3 pounds flank steak


  • Add all ingredients except flank steak to blender and run until smooth, reserve 1 cup for basting and dipping.
  • Pour remaining marinade over steak and refrigerate in a shallow pan or ziploc bag for at LEAST 24 hours. (I like to freeze mine in the marinade for later!)
  • Cook on a medium heat grill, basting continually, for 3 - 5 minutes on each side, or until you reach desired doneness. (This can also be done under the broiler in your oven).
  • Allow to rest 2 minutes before cutting.
  • Enjoy!


Calories are automatically generated. For best results calculate based on your exact ingredients. 


Calories: 374kcal