01 - Preheat your oven to 375°F (190°C).
02 - In a large mixing bowl, combine the softened cream cheese, sour cream, ranch dressing, Buffalo sauce, garlic powder, and black pepper. Mix until smooth.
03 - Fold in the shredded chicken, cheddar cheese, and mozzarella cheese until evenly incorporated.
04 - Transfer the mixture to a 9-inch oven-safe baking dish and spread into an even layer.
05 - Bake for 20–25 minutes, until the dip is hot and bubbly with a golden top.
06 - Remove from the oven and let cool for 5 minutes.
07 - Garnish with sliced green onions if desired. Serve warm with tortilla chips for dipping.