This vegetarian gravy is layered with bold flavors — from the onions to the roasted mushrooms and barley — each of which makes a real statement. Even our carnivorous food editors agree it's one of the best gravies they've ever tasted.
Cooks' note:
Gravy can be made 5 days ahead and cooled completely, uncovered, then chilled, covered. Bring to a boil just before serving.