1combine all ingredients EXCEPT the sour cream, in a lg sauce pan, and boil for 1/2 hr.
2remove some of the carrot, corsely chop it & set aside
3put the rest of the sauce pan ingredients into a blender, a little at a time, and puree (be sure NOT to fill the blender past 3/4 full, and make sure the top is cracked, to prevent exploding the lid)
4when it’s all pureed, return to sauce pan, and return to a low boil. THEN, whisk in the sour cream, 1 tbps at a time, Then, add the corsely chopped carrot, and boil on low for another 15 min. Add salt & pepper to taste, and serve.
From south of the border comes this spicy and hearty soup ladled over crisp tortilla strips and grated cheddar. The soup is chunky with chicken and avocado, but it's the tortillas that give it a slight thickness and a special flavor.