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BBQ London Broil Recipe

London broil is one of my favorite ways to prepare flank steak. This affordable cut of meat is often tough and requires a great-tasting marinade to tenderize. I was getting weary of the same ole' Worchestershire marinade I've used for years. After scouring the Internet for different ways to prepare London broil, I grabbed a few recipes, altered and changed ingredients, and came up with the following BBQ London Broil recipe. This recipe includes a dry rub and a marinade sauce, but is super simple to make.

It's best to marinate the BBQ London Broil flank steak overnight if possible. If you're short on time or can't wait an entire day to enjoy the deliciousness of this tasty cut of beef, allow at least one hour of marinating time. This steak is perfect for grilling, but can also be broiled; which is how I prepared it. I served the BBQ London Broil with macaroni and cheese and a side of green beans. Simple, tasty, and cheap!

London Broil should be served medium-rare, so keep a watchful eye when grilling or broiling. The meat is sliced and requires less cooking time than usual.


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Prep Time: 15 minutes
Marinate Time: 24 hours or 1 hour minimum
Cooking Time: 12-15 minutes
Meat Resting Time: 10 minutes
Serves: 4


1-1/2 pounds Flank Steak

Dry Rub

1/2 teaspoon freshly ground Black Pepper
1/2 teaspoon Kosher Salt
1/2 teaspoon Garlic Powder
1/2 teaspoon Blackening Seasoning


1/3 cup Ketchup
2 Tablespoons Tamari Sauce (or Soy Sauce)
2 Tablespoons Worchestershire Sauce
1/2 teaspoon Allspice
3 cloves Garlic, pressed or finely minced
1 Tablespoon Onions, pressed through garlic press or finely minced


1. Score meat diagonally, a little less than half-way through meat thickness. Turn meat 45 degrees and score diagonally again to create a criss-cross pattern.

2. Rub meat with one teaspoon of dry rub per side. Be certain to get seasoning into scored areas.

3. Place marinade ingredients into a gallon-size resealable plastic bag. Massage bag to incorporate ingredients. Place steak into the bag and gently massage marinade into the meat.way


4. Refrigerate overnight or for at least one hour.

5. Place meat on broiler pan and turn oven to broil.

6. Broil 6-8 minutes per side, depending on meat thickness.

7. Remove from broiler and let rest for 10 minutes.


8. Slice thinly against the grain and serve immediately.


If you have leftover meat use it for fajitas, quesadilla, or homestyle beef Manhattan sandwiches.