01 - Preheat oven to 400°F. Coat potatoes thoroughly with olive oil and season with kosher salt. Pierce each potato multiple times with a fork to allow steam to escape during baking.
02 - Arrange potatoes directly on oven rack. Bake for 50 to 60 minutes until skins are crispy and fork-tender. Allow potatoes to cool until safe to handle.
03 - Combine shredded chicken, sour cream, milk, cheddar cheese, crumbled bacon, green onions, butter, garlic powder, smoked paprika, black pepper, and salt in large bowl. Mix thoroughly until all ingredients are evenly distributed.
04 - Slice cooked potatoes in half lengthwise. Scoop out majority of flesh using spoon, leaving approximately 1/4-inch thick shells intact for filling.
05 - Add scooped potato flesh to chicken mixture. Mash potatoes into filling until completely incorporated and smooth. Adjust seasoning if necessary.
06 - Fill each potato shell with chicken-potato mixture, creating a slight mound. Sprinkle additional cheddar cheese generously over tops.
07 - Place stuffed potatoes on baking sheet. Return to 400°F oven and bake for 15 to 20 minutes until cheese is fully melted and lightly golden.
08 - Remove from oven. Garnish with fresh chopped parsley and serve immediately while hot.