Nicks Best Ever London Broil Recipe

[JEDIKNIGHT4HIRE1]

Here are two versions of the same recipe: first is the original recipe for weddings and banquets, the second recipe is a scaled down version of the first recipe for family size meals.
This is an excellent london broil recipe, and the best I've ever tasted.

LONDON BROIL
(Special Events Entrée)
Servings: 100 (5 1/2 oz. each)

41 lbs Flank Steak

FOR THE MARINADE:
(makes 2 gallons plus 2 cups)
1 gallon salad oil
1/2 gallon soy sauce
1/2 gallon Worcestershire sauce
2 lbs. brown sugar
1/2 lb sesame seeds
3 tbsp garlic powder
3 tbsp. ground ginger
2 tbsp. dry mustard

MARINADE INSTRUCTIONS:
Combine all ingredients for marinade; blend together well. Place flank steak into marinade. Use small enough container to allow flank steak to be completely covered by marinade. Marinade 24 hours minimum and not more than 4 days or flavor of the meat will be overpowered by marinade

COOKING INSTRUCTIONS:
Preheat grill to 360 degrees F for 1/2 hour.

Drain marinade from meat. Reserve marinade up to two weeks if needed.

Grill flank steak to medium rare. This will take approximately 10 minutes cooking time total. Hold cooked flank steak in warmer if necessary.

Slice cooked flank steak at 30 degree angle 1/8-inch thick slices: This is essential to keep flank steak tender.

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LONDON BROIL
Servings: 8 (5 1/2 oz. each)

4 lbs (2 large) flank steaks
FOR THE MARINADE (makes about 5 1/2 cups):
16 oz (2 cups) salad oil
8 oz (1 cup) soy sauce
8 oz (1 cup) Worcestershire sauce
1 cup brown sugar
1/2 cup sesame seeds
1 tsp garlic powder
1 tsp. ground ginger
1/4 tsp dry mustard

MARINADE INSTRUCTIONS:
Combine all ingredients for marinade; blend together well. Place flank steak into marinade. Use small enough container to allow flank steak to be completely covered by marinade. Marinade 24 hours minimum and not more than 4 days or flavor of the meat will be overpowered by marinade

COOKING INSTRUCTIONS:
Preheat grill to 360 degrees F for 1/2 hour.

Drain marinade from meat. Reserve marinade up to two weeks if needed.

Grill flank steak to medium rare. This will take approximately 10 minutes cooking time total. Hold cooked flank steak in warmer if necessary.

Transfer the steak to a cutting board and let rest for 5 minutes.

Slice cooked flank steak at 30 degree angle 1/8-inch thick slices: This is essential to keep flank steak tender.