01 - Preheat oven to 400°F. Rub potatoes thoroughly with olive oil and sprinkle with kosher salt. Prick each potato several times with a fork. Place directly on oven rack and bake for 50 to 60 minutes until skins are crisp and a knife slides easily into the center. Allow to cool slightly.
02 - While potatoes bake, combine shredded chicken, sour cream, milk, 1/4 cup cheddar cheese, bacon, green onions, butter, garlic powder, smoked paprika, black pepper, and salt in a large bowl. Mix thoroughly until all ingredients are evenly distributed.
03 - Cut each baked potato in half lengthwise. Carefully scoop out most of the flesh with a spoon, leaving about 1/4-inch thick shells intact. Transfer scooped potato flesh to the chicken filling mixture.
04 - Mash potato flesh into the chicken filling mixture until thoroughly combined and creamy. Taste and adjust seasoning with additional salt and pepper if needed.
05 - Spoon filling mixture back into potato shells, mounding slightly above the edge. Top each stuffed half with remaining 1/4 cup shredded cheddar cheese.
06 - Arrange stuffed potatoes on a baking sheet. Bake at 400°F for 15 to 20 minutes until cheese is melted and golden brown. Remove from oven, garnish with chopped fresh parsley, and serve immediately while hot.