Place unpeeled potatoes in a large pot (5 Qt+) and cover potatoes with cold water. Never start with hot water or the potatoes will overcook on the outside and be undercooked in the middle.Bring to a boil and cook until easily pierced with a knife, about 20-25 min depending on the size of your potatoes.Drain potatoes well and set aside.In a potato ricer, or mesh bowl, push the potatoes through. In the strainer we use a well curved wooden spoon to push them through.Meanwhile, melt the butter in the microwave and warm the cream in a separate bowl. Do NOT mix together.Stir the butter into the potatoes.Add the cream and salt and pepper and stir again until smooth.Serve with additional butter on top!