Wash, peel, and chop the potatoes.
Boil the potatoes in a large saucepan on the stove, until they're soft enough to easily jab with a fork, about 20-30 minutes.
Drain the water off the boiled potatoes, and leave them in the saucepan.
Add the butter and heavy whipping cream to the potatoes.
Use a hand mixer to whip the potatoes, adding salt and pepper to taste. You can also use a potato masher if you don't have a hand mixer; your potatoes may just be a little bit chunky.
Once they're whipped, they're ready to serve.