sour soup - kisla zupa

by Patricia Labellarte (Yeglic)
(Memphis Mi USA)

I do not know how to spell this soup in slovenian. We called it sour soup because you add vinegar to the broth at the time you eat it. It is beef and vegi's. I don't know the exact recipe...and I'd really like to know if this is truly slovenian or if my grandmother added to an existing soup.
It is pronounced KEESHLA ZOUPA. Help..does anyone have this recipe?

I have just about every recipe of my grandmother's but this one. I'm craving it....she always added chicken feet to the soup and everyone just loved it.