3 pounds Yukon Gold potatoes, peeled and cut into 2" cubes
8 ounces cream cheese, softened
4 tablespoons butter, softened
1 1/2 cups sour cream
1/2 cup heavy cream
Salt, to taste
Ground black pepper, to taste
1 cup Cheddar cheese, grated
Preheat the oven to 375 degrees Fahrenheit. Place the potatoes into a large pot, fill with water, and salt generously. Bring to a boil over high heat then reduce heat and simmer for about 20 minutes, until the potatoes are very soft.
Drain the potatoes and using an electric mixer, blend them until they are light and fluffy.
Stir in the cream cheese, butter, sour cream, heavy cream, salt and pepper. Pour into a 2-quart casserole dish and sprinkle Cheddar cheese evenly over top.
Place the dish into the oven and bake for about 40 minutes, until the top is golden brown.