This Zucchini Basil Soup is super delicious and healthy, and probably our family's favorite summer soup. It is surprisingly easy to prepare. Just saute onions, garlic and zucchini, add water and spices, simmer and puree. This parve Zucchini Soup can be served warm or cold. We like to eat it warm for Friday night dinner and cold for Sabbath lunch, as my kids like to dunk their challah into the soup.