The soup and sauce book

by Elizabeth Douglas

Potato Soup

3 potatoes
1 quart milk
1 table-spoon chopped onion
A little celery or ¹⁄₂ a tea-spoon celery salt
1 table-spoon white roux
1 table-spoon chopped parsley

Peel the potatoes. Soak them in cold water for half-an-hour. Cook them in boiling water until soft. Drain off the water. Put the potatoes through a sieve. Boil the milk with the onion and celery (or celery salt). Strain. Add to the potatoes. Stir in the white roux (see [p. 12]). Season. Boil for five minutes. Add the parsley.