In a 4- or 5-quart slow cooker, combine all ingredients except sour cream and pepitas. Cook, covered, on low until potatoes are tender, 5-6 hours. Puree soup using an immersion blender. Or, cool ...
In this recipe, I found the chickpeas took a backseat ... Reduce heat, cover and simmer until carrots are very tender, about 30 minutes. Puree the soup in batches with a blender or food processor ...