Preheat and Prep. Preheat your oven to 350F and lightly grease a baking dish. This helps prevent sticking and makes cleanup easier.
Mix the Base. In a large bowl, combine softened cream cheese and sour cream until smooth. This creates a creamy base for the dip.
Add Buffalo Flavor. Stir in buffalo wing sauce (I love the flavor of Frank's Red Hot), garlic powder, salt, and pepper. Taste and adjust buffalo sauce to your preferred heat level.
Add Chicken and Cheese. Fold in the shredded chicken and most of the shredded cheese, reserving some for topping.
Bake Until Bubbly. Transfer the mixture to your baking dish, sprinkle with remaining cheese and another drizzle of hot sauce, and bake for 25 minutes, or until hot, bubbly, and lightly golden on top.
Garnish and Serve. Top with a sprinkle of something green (onions, parsley, cilantro, whatever) and serve hot with your favorite dippers.