Creamy Zucchini, Garlic & Chive Soup - or Zucchinicremesuppe - Austrian Style

Before I visited Vienna, the last thing I would have associated with the schnitzel-loving city was,  of all things, excellent  vegetable soups.  But in restaurant after restaurant, I had some of the best cream soups of my life, from karotten (carrot) to knoblauch (garlic) to brokkoli to zucchini.