Spinach Soup

4 cups White Stock II or III

2 quarts spinach

3 cups boiling water

2 cups milk

¼ cup butter

⅓ cup flour

Salt

Pepper

Wash, pick over, and cook spinach thirty minutes in boiling water to which has been added one-fourth teaspoon powdered sugar and one-eighth teaspoon of soda; drain, chop, and rub through sieve; add stock, heat to boiling-point, bind, add milk, and season with salt and pepper.