fry onion until soft in oil and butter; chop all vegetables into 1" chunks or cubes and add to pan.
2
Add chicken stock and 2 pints of water. Add seasoning and herbs to taste. Bring to the boil and simmer for half an hour.
3
Add chicken breast meat, more water if necessary, and simmer for another half hour until all vegetables are very soft. Turn off the heat and leave to cool.
4
Liquidize until smooth and add water or milk until desired consistency achieved. Reheat until boiling to serve.