Ingredients

  • 1 1/2 pounds boneless, skinless chicken thighs
  • Salt and pepper
  • 2 tablespoons vegetable oil
  • 2 garlic cloves, minced
  • 2 teaspoons grated ginger
  • 1 tablespoon mirin or sherry
  • 1 tablespoon sugar
  • 1 tablespoon tamari or light soy sauce
  • 8 ounces soba (buckwheat noodles)
  • 8 ounces sugar snap peas or snow peas, trimmed
  • 8 cups water
  • 2 medium leeks, white and tender green part, diced, about 2 cups
  • 1/4 cup white miso, or more to taste
  • 5 ounces baby spinach, about 4 cups
  • A few basil or shiso leaves, julienned

Method

  • Season chicken thighs on all sides with salt and pepper.
  • Put oil in a heavy-bottomed soup pot over medium high heat.
  • Add thighs and cook for 3 to 4 minutes, reducing heat to keep meat from browning.
  • Turn and cook other side for about 2 minutes.
  • Add garlic and ginger and let sizzle without browning.
  • Add mirin, sugar, tamari and 8 cups water, then bring mixture to boil.
  • Lower heat and simmer gently for 20 minutes.
  • Turn off heat.
  • Remove thighs and chop into 1/2-inch chunks, then return meat to pot.
  • Taste broth and adjust salt if necessary.
  • In a separate pot, cook buckwheat noodles according to package directions, being careful not to overcook.
  • Drain noodles and refresh with cool water, then leave at room temperature.
  • Bring a small pot of salted water to boil.
  • Add snap peas and leeks and simmer 1 minute, then drain and refresh with cool water.
  • Leave at room temperature.
  • To serve, reheat broth to just under a boil.
  • Dilute miso with a little hot broth and whisk into soup.
  • Add spinach and let wilt slightly, then add leeks and snap peas and let them warm for 1 minute.
  • Divide the noodles among 6 warmed bowls and ladle soup over.
  • Top each bowl with a little basil.