Cheese Soup

3 stalks celery, chopped
3 scallions, chopped
1/4 cup butter or margarine, melted
2 (10 3/4 ounce) cans condensed chicken broth
3 cups water
2 carrots, scraped and grated
2 cups (8 ounces) shredded American cheese
1/2 teaspoon dried parsley flakes
1/8 teaspoon pepper
Dash of hot sauce
1 (8 ounce) container sour cream
3 tablespoons sherry

Saut