Grilled London Broil With Caramelized Onions - cooking recipe

Ingredients

4 lbs london broil beef
marinade
1/2 cup ketchup
1/3 cup vinegar
1/4 cup oil
3 tablespoons mustard
3 tablespoons soy sauce
3 tablespoons Worcestershire sauce
1 tablespoon grated horseradish
2 tablespoons honey
1 teaspoon grated ginger
3 garlic cloves, minced
1 teaspoon black pepper
1 teaspoon onion powder
1 tablespoon dried parsley flakes
caramelized onion (Caramelized Onions) (optional)

Preparation

Mix all marinade ingredients together and place in a gallon size zip lock.
Score meat on both sides then place into bag with marinade.
Refrigerate overnight.
Remove meat from marinade and bring marinade to a boil and simmer till meat is cooked.
Grill meat on high heat for 3-5 minutes on each side turning only once.
Meat registers 120-125 degrees F.
Let sit 10 minutes before cutting very thin slices on the bias.
Serve with caramelized onions and sauce.