01 - Preheat oven to 400°F. Line a baking sheet with parchment paper. Prick potatoes all over with a fork and bake directly on the oven rack for 45-50 minutes until tender. Allow to cool slightly.
02 - Slice each cooled potato in half lengthwise. Using a spoon, carefully scoop out most of the potato flesh, leaving approximately 1/4-inch shell. Reserve scooped flesh for other uses.
03 - Increase oven temperature to 450°F. Brush both sides of potato skins with melted butter and sprinkle with salt and pepper. Place skins cut side down on baking sheet. Bake for 10 minutes, then flip and bake 5 additional minutes until edges are crispy.
04 - Fill each potato skin with shredded cheddar cheese and crumbled bacon. Return to oven for 3-5 minutes until cheese is melted and bubbly.
05 - Remove from oven and top with chopped chives or green onions. Serve immediately with sour cream.