Peel and cut up potatoes. Chop onions and cook in butter just until clear and soft. Put potatoes in liquid and bring to a boil. Add onions, cooked in butter. Add seasoning. When potatoes are done, put the soup in a blender, a little at a time, to puree it, adding chunks of the cream cheese as you go along until all the soup and cheese have been blended. Chives or parsley are good garnishes.