This is my world famous chicken soup recipe. The secret is in the sweet potato and the cook time. I freeze the leftover liquid and then either use it as chicken stock or use it as a base to start my next chicken soup (yum!). I let this cook all day long because we like it dark, but it's all a matter of personal preference. (keep the cook time in mind for the salt amount--the more cook time, the less salt!) You can vary the vegetables but don't ever leave out the sweet potato!