01 - Preheat your oven to 350°F.
02 - In a large mixing bowl, thoroughly combine the softened cream cheese, sour cream, and ranch dressing until the mixture is smooth and homogeneous.
03 - Incorporate the shredded chicken and buffalo wing sauce into the cream cheese mixture, stirring until well combined.
04 - Gently fold in 1 cup of shredded cheddar cheese and all of the shredded mozzarella cheese.
05 - Transfer the prepared mixture into an 8x8 inch baking dish, spreading it evenly across the bottom.
06 - Evenly sprinkle the reserved shredded cheddar cheese over the surface of the dip.
07 - Bake for 20-25 minutes, or until the dip is heated through and bubbling around the edges.
08 - Carefully remove the baking dish from the oven and allow the dip to rest for 5 minutes before serving.
09 - Serve the warm buffalo chicken dip alongside tortilla chips for dipping.