Cook 4 pieces of bacon until crisp. Drain and break into small pieces.
Cut chives into pieces.
Shred or finely chop cheddar cheese.
Combine baked potatoes, butter, heavy whipping cream, sour cream, and milk in a pot.
Heat slowly, stirring frequently to prevent scorching.
Stir well to break up potato pieces.
Simmer on low until well blended.
Garnish with bacon, chives, and cheddar cheese.