A few years ago an ex-coworker of mine invited me to her house for a party. At the end of the party, her parents (whom are from Peru) served this amazingly delicious soup that had been simmering all night. They said it was good for preventing hangovers the next day. I believe it was a chicken-stock based soup with parsley -- lots of parsley, as the soup was very green in color. Does anyone know what this soup is called and where the best place to find it in LA might be?