Wash the rice with running water until the water runs clear.
Add the water and rice to a saucepan over medium high heat.
Bring the rice to a boil then reduce to a simmer. Cook out the rice. (8-10 min)
Drain the rice into a wooden, plastic or glass bowl and cool. Avoid using metal bowls and utensils as we will add vinegar later and it may taint the flavour.
Chop the shrimp into an even size (5 mm). Slice the spring onion and combine all with the mayo and sriracha sauce. Allow to marinade for 15 min.
In a bowl, add the rice wine vinegar, sugar and salt. Stir to dissolve. A little heat can help speed up the dissolving process.
Add the seasoning to the rice and cut through the rice with a wooden or silicon spatula to coat the rice. This action prevents the rice from getting damaged too much.
Slice the cucumber into 5 mm x 5 mm strips.
Take a sheet of nori and place onto the bamboo mat. Cover the nearest half of the sheet with a layer of seasoned rice.
Lay across two strips of cucumber and fill between the two with shrimp mixture.
Lift the edge of the mat and roll away from you applying firm downward pressure to roll a firm sushi roll.
Cut each roll into eight bite size pieces.
Enjoy with soy and ginger sauce.