Stout beer tenderizes this oven-baked london broil roast. You will enjoy the rich, robust gravy which is flavored with onions, garlic, thyme, and a hint of bacon. Serve with mashed potatoes, turnips, buttered noodles, or rice for a filling meal. The gravy is rich but thinmore like an au jus. If you prefer it thicker, you may reduce it by boiling or stir in a slurry of cornstarch mixed with water, heating until thickened.