Baked Potato Soup

This is another one of my Mom's recipes, so good :)

BAKED POTATO SOUP

4 large baked potatoes, peeled and cubed
12 slices of bacon (drained & crumbled), or 8oz of small cubed ham
4 green onions, chopped, or 2 tsp of dried chives
1/3 cup margarine or butter
1/3 cup all purpose flour
7 cups milk
1 tsp salt
1 tsp ground black pepper
6oz shredded cheddar cheese
6oz Velveeta, cubed
1 cup sour cream

In a stock pot or dutch oven, melt the margarine over medium heat. Whisk in flour until smooth. Gradually stir in milk, whisking constantly until thickened. Stir in potatoes and onions. Bring to a boil, stirring frequently.

Reduce heat, and simmer 10 minutes. Mix in bacon, cheese, sour cream, salt, pepper. Continue cooking, stirring frequently, until cheese is melted.