Baked Potato Soup

INGREDIENTS:

-Sue Woodward
6 lg Baking potatoes; to 8
2 c Chicken stock
1/2 c Margarine
1/4 c Flour
1 md Onion; chopped
1 tb Parsley; chopped
3/4 ts Pepper
1 ts Garlic powder
1 ts Salt
1 pt Heavy cream