Baked Potato Soup

DELICIOUS!
2/3 cup margarine
2/3 cup flour
6-7 cup milk
4 large baked potatoes, cubed and skins removed
½ tsp salt
½ tsp pepper
4 green onions, chopped
12 pieces of bacon, cooked and crumbled
1 cup shredded cheese
1 cup sour cream (optional—the best with it though)
Melt margarine. Add flour, then milk, stirring until thick (about 15 min). Add everything else.
Ruth