Mashed Potato Soup
rec.food.recipes/fstanley (1997)

There aren't set ingredient amounts for this recipe-it depends on the amount of leftover mashed potatoes you have.

Leftover mashed potatoes
onion
butter
milk
salt & papper
seasonings to taste

Saute diced onion in butter until translucent. Add mashed potatoes and milk slowly. Add more of less milk depending if you want a thin or thick soup. Stir until no lumps remain and keep stirring so that it doesn't burn. Salt and pepper to taste. Add other herbs or spices or diced ham/bacon, etc.