Boil: Bring the water to a boil, gently add the eggs and cook for exactly 6½ to 7 minutes.
Ice bath: Immediately transfer eggs to a bowl of ice water for 3 to 5 minutes to stop cooking.
Marinate (optional but recommended): Peel the eggs and marinate in a mixture of 2 tablespoons soy sauce, 2 tablespoons mirin, 1 teaspoon sugar, and 4 tablespoons water for at least 4 hours (or overnight).
Serve: Cut in half, letting the yolk flow into the broth.
foods:
1 package of noodles
2 cups of water
1 large egg
1 tablespoon soy sauce
1/2 teaspoon chili sauce
1 tablespoon chives
1/2 teaspoon salt
1/2 tablespoon pepper