Potato Soup - cooking recipe

Ingredients

3 potatoes
1 pt. milk
2 tsp. chopped onions
1 Tbsp. butter
1 tsp. salt
1 Tbsp. flour
1/8 tsp. pepper
a little celery salt
2 Tbsp. chopped parsley

Preparation

Boil potatoes until soft; drain.
Add milk and onion.
Add hot liquid.
Make white sauce.
Cook five minutes.
Add parsley just before serving.