01 - Preheat the oven to 375°F.
02 - In a large mixing bowl, combine cream cheese, ranch dressing, blue cheese dressing, hot sauce, garlic powder, and black pepper. Mix until smooth and fully incorporated.
03 - Fold in the shredded chicken, mozzarella cheese, and half of the blue cheese crumbles until evenly distributed throughout the mixture.
04 - Spread the mixture evenly into a 9-inch baking dish or ovenproof skillet, ensuring a uniform layer.
05 - Sprinkle the remaining blue cheese crumbles evenly over the top of the dip.
06 - Bake for 20-25 minutes until the dip is hot throughout and the cheese is melted and bubbly.
07 - Let cool for 5 minutes to set slightly, then serve warm with celery sticks for dipping.