Potato Soup - cooking recipe

Ingredients

1 Tbsp. chopped onion
2 Tbsp. butter
1 tsp. salt
1/4 tsp. celery salt
1/8 tsp. pepper
1 c. mashed or boiled potatoes
2 c. hot milk

Preparation

Mix all together and let cook until potatoes are tender.
Let cool for a few minutes and serve.