Peel and cut potatoes into 1 inch cubes and wash thoroughly under cold water. Place in a large pot and cover with cold water. Cover with lid and place pot on stove over medium high heat. Cook until fork goes into potato and comes out without any difficulty at all.
Drain potatoes thoroughly. Place butter into potatoes and using a mixer, begin to mash potatoes with blades (do not turn mixer on yet). Continue to mash using an up and down motion and then turn mixer on and continue to mash potatoes. Add salt and pepper to taste.
After all lumps have been mashed out, add milk and turn speed up on mixer and whip potatoes until light and fluffy. Additional milk, salt and pepper may be added if desired. Makes 6 servings. Enjoy!
Note: A great way to keep potatoes hot after they've been whipped is to wrap pot in a big thick bath towel. Keep on back of stove, wrapped and they'll keep hot quite awhile.