01 -
Rinse sushi rice under cold water until water runs clear. Combine rice with water in a rice cooker and cook as per manufacturer's instructions. Once cooked, incorporate rice vinegar, sugar, and salt, then allow to cool to room temperature.
02 -
Place a sheet of nori on a bamboo sushi mat. Spread a thin, even layer of seasoned sushi rice over the nori, leaving a 2.5 cm border at the top edge. Arrange 2 tempura shrimp, avocado slices, and cucumber julienne along the bottom edge.
03 -
Roll the sushi tightly from the bottom using the bamboo mat to shape it. Moisten the exposed nori strip with water and press to seal the roll.
04 -
In a small bowl, combine mayonnaise, sriracha sauce, soy sauce, sesame oil, and rice vinegar. Mix until smooth.
05 -
Arrange the sushi roll on a baking sheet. Generously spoon the volcano topping over the roll. Broil in a preheated oven for 2–3 minutes until the topping is bubbly and lightly browned.
06 -
Allow to cool slightly, then slice the roll into bite-sized pieces. Garnish with sesame seeds, eel sauce if desired, and chopped green onions before serving.