Preheat your oven to 400°F (200°C). Scrub the potatoes clean, poke a few holes in each with a fork, and place them directly on the oven rack. Bake for 50–60 minutes or until tender when pierced with a knife.
While the potatoes are baking, combine the shredded chicken, cream cheese, sour cream, ranch seasoning, cheddar cheese, and crumbled bacon in a large mixing bowl. Mix until everything is well combined. If the mixture is too thick, add a splash of milk to loosen it up.
Once the potatoes are done, carefully cut a slit down the center of each one and gently fluff the insides with a fork. Spoon a generous amount of the crack chicken mixture into each potato, stuffing it fully.
Place the stuffed potatoes on a baking sheet and return them to the oven for 10–15 minutes, or until heated through and the cheese is melted.
Top each stuffed potato with additional shredded cheese, green onions, or a dollop of sour cream if desired. Serve warm and enjoy!