1/2 C Worcestershire sauce
3 garlic cloves
2 T fresh rosemary
4 T butter
2 t brown sugar
salt and pepper
Marinade stead in Worcestershire sauce for 1/2 hour in ziplock bag. Leave out to get the room temperature. Remove from bag and pat dry.
Mince garlic and rosemary. Add 1 t salt and mince again. Rub the paste on both sides of the london broil.
Set oven to broil. Place london broil into over and cook on one side for 7 minutes.
Turn steak over and sprinkle with brown sugar. Cook for 5-12 minutes, depending on well done you'd like it. Less for rare and more for well done.
Remove from oven. Spread herbed butter on steak. Leave under tented foil for 10 minutes.