Directions:

Preheat oven to 350 degrees F

Add potatoes to large pot with enough cold water to cover potatoes by 1-inch. Generously salt the water and bring to boil over high heat. Once boiling, reduce heat to medium and continue to softly boil until potatoes are fork tender, 10-15 minutes depending on size.

Remove from heat and drain, returning potatoes to warm pot to let excess moisture evaporate.

Add butter and hot milk to potatoes and beat with hand mixer until smooth and fluffy. Season with salt and pepper to taste and mix until just combined.

Stir sour cream, 2 cups cheddar cheese, and half of crumbled bacon into creamy mashed potatoes and transfer to large baking dish. Top with remaining cheese and bacon. Bake uncovered until cheese on top is melted and begins to brown, 25-30 minutes. Remove from oven and top with scallions.