Delicious Potato Soup

2/3 cup butter
2/3 c. flour
7 c. milk
4 large potatoes, cooked and cubed (about 4 cups)
4 green onions, sliced
1 pkg bacon, cooked and crumbled
1 1/4 c. shredded cheddar cheese
1 c. sour cream
3/4 t. salt
1/2 t. pepper

In a large soup kettle, melt the butter. Stir in flour; heat and stir until smooth. Gradually add milk, stirring constantly until thickened. Add potatoes and onions. Bring to a boil, stirring constantly. Reduce heat; simmer for 10 minutes. Add remaining ingredients; stir until cheese is melted. Serve immediately. Yield: 8 to 10 servings (2 1/2 quarts)