Simple Zucchini Soup

Directions

1. 1
   Heat butter and oil in a 3 quart saucepan.
2. 2
   add onion and saute on low until translucent.
3. 3
   Add zucchini and saute another 2 minutes.
4. 4
   Add the stock and 2 tablespoons oregano, bring to a simmer.
5. 5
   Cover and simmer 30 minutes until tender.
6. 6
   Pour into a blender and puree.
7. 7
   Return to the pan and add salt and pepper.
8. 8
   Add cream if serving it hot.
9. 9
   If serving it cold, cool soup to room temperature and whisk in the yogurt.
10. 10
    Garnish with remaining oregano.