Preheat your oven to 400°F (200°C).
In a mixing bowl, combine the flour, celery salt, salt, black pepper, paprika, onion powder, garlic powder, cayenne pepper, thyme, and Bojangles Cajun-seasoned flour.
In another bowl, whisk together the lemon juice, Cajun seasoning, Tobasco sauce, Worcestershire Sauce, vinegar, minced garlic, and mustard.
Dip the chicken pieces first in the liquid mixture and then coat them thoroughly in the flour mixture.
Arrange the coated chicken bites on a baking tray, ensuring they're not touching.
Bake in the preheated oven for 18-22 minutes or until golden and crispy. Use a meat thermometer to ensure the internal temperature is at least 165°F (74°C).
Serve hot with your favorite Cajun dipping sauce.