Super Easy Cold Cucumber-Avocado Soup

All you have to do is put everything in the blender!  Then you have to wait several hours for it to properly chill.  But the wait is worth it!  The flavors are absolutely amazing in this cold soup.  YUM!
-1 large cucumber, peeled, seeded and cut into large chunks
-1 large, ripe avocado, pitted and peeled
-2 green onions, cleaned and cut into large chunks
-1 cup chicken broth
-3/4 cup sour cream
-2 Tbs lemon juice
-salt and pepper, to taste
-garlic croutons, for topping
Place all ingredients, except for croutons, into your blender.  Process until smooth.  Check the seasoning to make sure it's to your liking.  Pour into large bowl, cover and let it chill in the fridge for 4-6 hours.
When ready to serve, ladle into bowl, top with some garlic croutons and enjoy!
Slightly altered from a Food Network recipe.