Potato Soup - cooking recipe

Ingredients

8 to 10 medium red potatoes, peeled and diced
3 to 4 stalks celery, diced
1 medium onion, diced
milk
1 stick margarine
pepper to taste

Preparation

Combine first 3 ingredients and cover with water, adding salt to taste.
Boil until vegetables are tender and pour off water. Cover with milk, adding margarine and pepper.
Bring to a boil, watching carefully to prevent sticking.
Mix a paste of water and flour; add to potato mixture.
Add slowly and cook until desired thickness.