Scrub your russet potatoes under cold water for a few seconds and dry off completely with paper towels
Place the potatoes in a bowl and drizzle on one tablespoon of vegetable oil, 1/2 tablespoon of salt, and 1/4 tablespoon of pepper
Using your hands, rub the oil, salt, and pepper onto the potatoes until they are all evenly coated
Using a fork, poke holes all over the potatoes so the moisture can release while they are baking
Place them directly on the center grate of your oven (you might want to place a baking sheet on the grate beneath the potatoes to avoid any mess)
Bake for one hour
The potatoes should be fork tender when you take them out
Remove the potatoes to a cooling rack and let sit until they are cool enough to handle
While your potatoes are cooling, start on your buffalo chicken
Dice up 2 cups of chicken (you can use left over roast chicken, rotisserie chicken, or anything else as long as it is two cups when diced)
Heat a medium pot over medium low/medium heat and add your cream cheese and buffalo sauce
Let this mixture melt together, whisking frequently, until it forms a uniform sauce
While that is happening, thinly slice two stalks of celery
Set your sauce aside once it is melted together
Turn your oven broiler on
Cut your potatoes in half and carefully scoop out the center, leaving enough potato to still give the skin some structure
Brush on some vegetable oil onto each potato skin, just enough to moisten it
Sprinkle some salt and pepper into each potato skin
Place the potato skins on a baking sheet and place under the broiler for about 5-7 minutes, or until the edges are golden brown (watch them carefully!)
While your potatoes are in the oven, make your Greek yogurt ranch
Stir together 1/4 cup Greek yogurt, a few splashes of 2% milk, and 1 1/2 teaspoons dry ranch dressing mix until it comes together
Taste your dressing and add any extra ranch powder that you think it needs
Once your potatoes are ready, take them out of the oven and spoon equal portions of buffalo chicken into each skin
Sprinkle some celery onto each potato skin and drizzle with some of your Greek yogurt ranch