01 - Preheat oven to 400°F (204°C). Clean and dry the potatoes, then pierce several times with a fork. Arrange directly on oven rack and bake for 55-60 minutes, or until fork-tender.
02 - Allow potatoes to cool for 10 minutes. Cut each potato in half lengthwise. Carefully scoop out the flesh, leaving a thin shell. Place potato flesh in a large mixing bowl.
03 - Add sour cream, ranch dressing, milk, melted butter, garlic powder, salt, and pepper to the potato flesh. Mash until creamy and smooth.
04 - Fold in half of the cheddar cheese, half of the bacon, and half of the chives. Stir until evenly distributed.
05 - Spoon the mixture evenly into the potato shells, mounding slightly.
06 - Place stuffed potatoes on a baking sheet. Top with remaining cheddar cheese and bacon. Bake at 400°F (204°C) for 18-20 minutes, until cheese is melted and tops are lightly golden.
07 - Garnish with reserved chives before serving. Enjoy hot.