Preheat your oil to 300°F in a deep fryer or heavy-bottomed pot. Maintaining this temperature ensures the chicken cooks evenly.
Prepare the Batter: In a bowl, whisk together flour, cold water, and eggs until smooth. Place in the fridge while prepping everything else. A colder batter yields a crispier coating, so chilling it for a few hours is ideal.
Make the Seasoned Flour: In a separate bowl, combine all seasoned flour ingredients. Mix well and set aside.
Prep the Chicken: Pat chicken tenderloins dry with a paper towel. Lightly season with kosher salt and black pepper.
Coating Process: Dredge each tenderloin in plain flour, shaking off excess. Dip into the cold batter, ensuring full coverage. Do not shake off excess batter. Immediately coat in the seasoned flour, pressing firmly to create a textured, craggy crust. The thicker the batter, the crunchier the chicken.
First Fry: Fry chicken in batches for 4 minutes until lightly golden. Remove and drain on a wire rack.
Final Fry for Crispiness: Increase oil temperature to 375°F. Fry the chicken a second time for 1-2 minutes until deep golden brown and crispy.
Serve & Enjoy: Let the chicken rest briefly before serving. Pair with your favorite dipping sauce and enjoy!
