Preheat oven to 350°F. Peel potatoes and çut into 1 inch chunks. Place in a large pot and add enough cold water to cover by 2 inches. Bring to a boil and reduce to simmer. Cook until tender and easily pierced with a paring knife, about 20 minutes. Drain and put in a large bowl.

Using a mixer, beat potatoes until light and fluffy. Add cream cheese, butter, sour cream and stir until combined and smooth. Add cheddar cheese, half of the bacon bits, salt and pepper. Mix until well combined.

Transfer to a buttered 3. quart bazking dish. Top with remain in 1/2 cup of cheddar cheese and bacon bts. Bake for 30 minutes or until the potatoes are heated through and top is slightly golden brown.