Peel the shell off the prawns, leaving the tail on. Devein and make three shallow cuts on the bottom of the prawn to straighten it out. Pat dry with paper towels then season generously with salt and pepper.
Dredge the prawns in flour, then egg, then back into flour, egg, and finally panko, pressing to adhere. Repeat the breading process so the shrimp are double coated.
Heat the oil to 350°F and when hot, add the prawns, 2-3 at a time and deep fry, 2-3 minutes, or until golden brown, flipping as needed. Drain on a wire rack.
Enjoy with cabbage, cucumbers, tomatoes, and Japanese tartar sauce.