Add your fry ingredients to 3 bowls: flour, eggs and panko. Add everything but the bagel seasoning to the panko breadcrumbs and stir until combined. Starting with the flour, then eggs, then panko, coat chicken slices. Transfer to a plate and repeat with remaining slices of chicken.
Add fry oil to a large skillet. When oil reaches 350, add chicken. Cook for about 3-4 min per side or until chicken is a deep golden brown. Transfer to a cooling rack.
Meanwhile make your slaw by combining ingredients in a bowl and mix to combine. Season to taste.
Combine the rest of the kewpie mayo & Korean BBQ sauce in a bowl. Toast bread and add spread the BBQ mayo to each piece. Add a slice of chicken and a handful of slaw. Slice and enjoy!
