In a medium soup pot, melt butter over low heat and saute onions until tender. Stir in the mashed potatoes and then slowly add the chicken stock. Stirring, add milk (use more or less to achieve desired creaminess). Cook until heated through and season with salt and pepper to taste.
Used different ingredients.
Yummy way to use up mash. I added sour cream, chives and cheddar cheese on top. Mmmm- comfort food. - 29 Sep 2008
Altered ingredient amounts.
Very easy and very tasty! Perfect comfort food. I added a bit more milk and let it simmer a while to really let the flavours blend. - 29 Sep 2008
I made the soup as is, except I did add some baked potato cubes as well. This is a good basic potato soup recipe. Nothing super spectacular - but, not unpleasant either. I would make it again, because it is tasty and very easy to make. - 29 Sep 2008