Place chicken breasts in large dutch oven or stock pot. Add enough water to cover, season with poultry seasoning, and bring to a boil. Cover pot and turn heat down to medium low and continue simmering until meat falls off the bones.
Remove bones and skin from chicken and discard. Add onion, celery, carrots, garlic and chicken broth. Continue to simmer until vegetables become tender. Add butter, cumin and celery seed, salt and pepper to taste. Simmer for another fifteen minutes and then bring heat up to a low boil.