In a saucepan, pour just enough water over the rice to cover it and cook for 10 minutes.
Remove from the heat and slowly stir in the mirin and vinegar, ensuring each grain of rice is coated, then leave aside to cool.
On a sushi mat, lay a down a nori sheet, spread out a thin layer of rive, enough to cover it, but leave the top and bottom edges bare.
Place the vegetables on the centre of the rice bed.
Starting from the bottom end (end closest to you), firmly grab the mat and the sushi and begin to roll over, using fingers to hold in the filling as you roll and seal the edges once you get to the end.
For a sushi roll with the rice layer on the outside instead of the inside, lay a sheet of clingfilm on to the sushi mat.
Place the rice on top as before, but this time, flip the sheet over so that the rice is face down on the mat (with the clingfilm directly in contact with it).
Place the filling in the centre as before and roll.
Cut each roll in half.
Wrap each half in one sheet of rice paper and fold over, tucking the ends underneath the roll.
pan fry lightly until crisp and golden on all sides.
Decorate with garnishes as desired and serve alongside the soy sauce, wasabi and pickled ginger.