Such a simple dish, mashed potatoes, and yet there are many different ways to prepare them. This is mom's mashed potatoes recipe which is a basic recipe. But mom always had a list of optional additives to make them special. It's all included here. NOTE: When adding the milk, add slowly while stirring and watching the consistency of the potatoes. You may need more or less than the 1 cup of milk called for. Remember, you can add more milk...but you can't take it out if you use too much and end up with soup.