Preheat the oven to 375 degrees and line a baking sheet with parchment paper.
In a large bowl, combine the ground chicken, buffalo wing sauce, egg, celery, parsley, garlic powder, onion powder, salt, and black pepper. Mix until evenly blended.
Divide the mixture into four equal portions and shape each into a small loaf. Place the loaves on the prepared baking sheet.
Bake for 25 to 28 minutes until the internal temperature reaches 165 degrees.
Remove from the oven and drizzle each loaf with additional buffalo wing sauce. Sprinkle the blue cheese over the top while still warm.
Serve with ranch dressing on the side.