Make The Marinade

In a small bowl, whisk the marinade ingredients.

Marinate

Place the beef in a large resealable plastic bag or in a shallow dish.

Add the marinade and seal the bag, removing as much air as possible. Or pour the marinade over the steak and cover with plastic wrap.

Marinate in the refrigerator for 1 hour or up to 8 to 12 hours.

Preheat the oven to 425 degrees Fahrenheit.

In a cast iron skillet, heat the oil over medium high heat.

Remove the steak from the marinade and gently pat dry it with paper towels.

Place the steak in the skillet and cook for about 2 minutes per side.

Place the skillet in the oven and cook for about 5-6 minutes or until the steak reaches your desired level of doneness. See Tips below.

Remove from the oven and let the meat rest, tented with aluminum foil for 5 minutes. Slice thinly across the grain.

NOTES

Remove the London broil from the refrigerator 30 minutes before you are ready to cook it.

It is best to cook London Broil Flank Steak to medium rare. Over cooked flank steak gets dry and chewy.

Internal Temperatures For Steak MEDIUM RARE: 130 – 135 degrees