Take everything you see here (potato, celery, parsnip, onion, dried mushrooms, seitan, salt, bay leaf, carrot and garlic) and horse it into a big pot. Cover with water and boil until veggies are cooked to desired tenderness. Add vegetarian gravy granules and stir until dissolved. I know using them is a cop out, but I can't think of any better way to get the broth to turn brown and "beefy." Suggestions welcome.