Add carrots, celery and onion; after 3 minutes, Stir in 5 1/2 cups water, soy sauce and chicken. Bring to boil; cover and simmer 15 minutes. Remove chicken; cool.
Remove skin and bone from chicken and cut meat into bite-size pieces.
Stir chicken into soup; bring to a boil.
Makes 4 to 6 servings.
