Wash the potatoes under cool water. Use a fork to poke a few holes in the potatoes.
Place the potatoes in the oven on 350 f, for 1 hour or until done.
Remove the potatoes from the oven and let them cool down.
Once the potatoes are cool. Cut and scoop the filling out into a large mixing bowl.
Mash the potatoes, and add in the butter, sour cream, salt, pepper, and cheese. Mix the potato mixture.
Pick out your bake dish and spray it with nonstick spray or butter it.
Put the potato mixture in the baking dish and smooth it out.
Sprinkle the remaining cheese on top, followed by the bacon and chives.
Place the casserole into the oven uncovered on 350 F.
Let the casserole bake for 20 minutes.