Place the potatoes into a large pot and cover with cold water. Add some salt to the water and bring to a boil. Cook until fork tender, about 30 minutes. Turn burner off.
Drain the potatoes, and return them to the pot. Place pot back on burner (heat is still off) and shake while the residual heat dries the potatoes slightly for 2 minutes.
Mash the potatoes with a potato masher and add the heavy cream through cream cheese. Continue mashing and mixing until combined.
Taste for seasonings and add salt and pepper. At this point I might add a little more butter.
Scoop into serving dish and serve warm with a few dots of butter on top.