Unbelievably Easy Potato Soup

Don't let the sparse ingredient list fool you. This is a recipe that's so easy to make yet so delicious that everyone inhales it. My mother was raised on this soup and she served it often to us. My grown daughters now demand it when they are home. To this day, entering the house on a cold day and smelling this soup is the most comforting, delicious aroma imaginable. It's also non-fat if you use skim milk. (But I like half-and-half, myself!)