Throw mature hen in pressure cooker for 1.5 hours (after cleaning and quick parboil). Set aside 200-300ml for torisoba. Season soup with rice wine (or Shiaoxing wine), a dribble of soy sauce, and salt. You can soak some kelp in there for some added glutamate umami. Blanche some Asian greens, shred meat from hen, and throw everything together with some very thin ramen noodles (or egg noodles, or thin wheat (like sômen) noodles). Add a drizzle of sesame oil.
Stare into the clear, golden broth and slurp.