Cheese Potato Soup

10 medium potatoes
2 1/2 cup water
1 teaspoon salt
2 tablespoon celery, chopped
1/2 teaspoon marjoram, dried
5 green onions, chopped
3 tablespoon margarine
3 tablespoon flour
3 cup milk
1/2 teaspoon pepper
1/2 cup swiss cheese, shredded

Cube potatoes. Place in large, heavy kettle with water, salt, celery, marjoram and white part of onions. Bring to a boil. Reduce heat and simmer 30 minutes. Remove from heat and mash undrained vegetables. Set aside. In another saucepan, melt margarine and blend in flour. Cook until mixture bubbles, stirring constantly. Slowly add milk and cook until thickened, stirring constantly. Stir white sauce into potato mixture. Add green onion tops, pepper and cheese. Heat over medium to low heat until cheese melts. Serve.