To make the marinade, mix 1/2 cup honey and 1/2 cup soy sauce in a bowl. Mince 4-5 cloves garlic & add to the sauce. Pour over the rinsed London broil. Let marinade at least 4 hours up to overnight.
When you are ready to cook the London broil, heat up your grill as hot as you can get it.
Lay the London broils across the grill in a single layer. Grill 2 minutes on each side or until medium rare. Let rest before slicing.
Slice against the grain & serve!