Add all of the filling ingredients to a mixing bowl.
Mix thoroughly until everything is evenly distributed.
Prepare a small bowl of water and a tray for the completed gyoza next to you. Place a wrapper on your palm and add about ½-1 tbsp of filling to the center, leaving a thick border. Lightly wet the border.
Pinch two parallel edges together and push them to the middle so that the edges form a cross along the top.
Firmly pinch the edges to seal.
Fold down each edge in the same direction to create the windmill shape.
If there is a hole in the center, pinch firmly to close it.
Repeat until you've used up all of your wrappers and filling.
Preheat your oil to 170 °C (338 °F). Once hot, add the gyoza to the oil and fry for 2 minutes.
Flip them over and fry for another 2 minutes, or until crispy and golden.
Transfer to a wire rack to allow the excess oil to drain off.
Enjoy with ponzu or your choice of dipping sauce!