Combine everything except sesame seeds and oil in a large bowl and mix well.
Allow to stand for 2 minutes whilst the oil is heating.
Place a 1/8 cup of oil into a 20cm fry pan and shallow fry.
Spoon a tablespoon of mixture into hot oil and spread our into a disk of around 10-12cms, sprinkle with sesame seeds. Flip when golden and crispy on one side. Top with Japanese mayonnaise and pickled ginger, consume and enjoy!