Easy Potato Soup - cooking recipe

Ingredients

1 Tbsp. butter or margarine
1/2 onion, minced
1 c. prepared mashed potatoes
1 c. chicken broth
1 tsp. salt
1/2 c. celery salt
1 c. milk
1/2 tsp. pepper

Preparation

In a medium saucepan melt margarine; add onion and cook, stirring constantly for 5 minutes or until tender.
Add remaining ingredients and simmer 10 minutes.