Gather all your ingredients.
Shred your cooked chicken if not done already.
In a large mixing bowl, combine the shredded chicken, softened cream cheese, ranch dressing, and buffalo wing sauce. Mix until well combined, then stir in the shredded cheddar cheese and blue cheese if using.
Transfer the mixture to a baking dish and spread it evenly. Bake in a preheated oven at 350°F for 20-25 minutes until hot and bubbly.
Remove from the oven, let cool for a few minutes, garnish with chopped green onions, and serve warm with dippers.