Marinated and Grilled London Broil with a Spicy Horseradish Sauce

This thick and juice London broil is marinated
perfectly with plenty of garlic,
Worcestershire, fresh herbs and molasses.
It is then cooked to perfection
and served with a zesty sauce.

Ingredients:
3 1/2 lb London broil flank steak, 1 1/2 inches thick
3/4 cup extra virgin olive oil
4 garlic cloves, minced
2 tablespoon Worcestershire sauce
2 tablespoons molasses
1 medium onion, thinly sliced
2 tablespoons balsamic vinegar
1/4 cup orange juice
1 teaspoon dried basil
1 teaspoon salt
1 tablespoon freshly ground black pepper
Melted butter for basting

Spicy Horseradish Sauce:
1/2 cup mayonnaise
1/2 cup sour cream
1/4 cup freshly grated horseradish root
1 teaspoon sugar
1 garlic clove, minced
1/4 teaspoon hot pepper flakes
1 tablespoon chopped green onion, green part only
Salt and pepper to taste

Directions:
Place meat in a glass baking dish,
deep enough to accommodate meat and marinade.
Poke liberally with a dinner fork or meat tenderizer.
In a medium bowl, combine all marinade ingredients and mix well.
Pour mixture over meat and marinate at least 3 hours or overnight.
Remove meat from refrigerator and let set 30 minutes at room temperature, discarding liquid. Using a gas grill,
preheat on medium high then add meat.
Grill 10-12 minutes on each side.
Steak is best when cooked to medium rare.
Baste occasionally on each side with butter.
Remove steak, cover with foil, and let sit at least 5 minutes before slicing. Slice steak diagonally into 1/8 inch slices across grain.
Arrange slices on platter and pour any leftover juices over steak.
Serve with Spicy Horseradish Sauce.
Spicy Horseradish Sauce:
Mix ingredients together in a medium bowl.
Cover and refrigerate at least 1 hour.