01 - Mix shredded chicken, buffalo wing sauce, mozzarella, blue cheese (if using), celery, green onions, garlic powder, and black pepper in a large mixing bowl until well blended.
02 - Lay an egg roll wrapper on a clean surface with a corner toward you. Place 2 to 3 tablespoons of filling in the center.
03 - Fold the bottom corner over the filling, fold in the sides, and roll tightly. Brush the top corner with beaten egg to seal securely.
04 - Continue filling and rolling remaining wrappers with prepared chicken mixture.
05 - Fill a deep frying pot with 2 inches of vegetable oil and heat to 350°F.
06 - Fry egg rolls in batches for 3 to 4 minutes or until golden brown and crispy, turning as needed. Transfer to paper towels to drain excess oil.
07 - Present egg rolls warm with ranch or blue cheese dressing for dipping.