1. Rinse the sushi rice under cold water until the water runs clear. Combine rice and water in a rice cooker and cook according to the manufacturer’s instructions.
2. In a small bowl, mix rice vinegar, sugar, and salt until dissolved. Once the rice is cooked, transfer it to a bowl and gently fold in the vinegar mixture. Allow it to cool.
3. Place a sheet of nori on a bamboo sushi mat, shiny side down. Wet your hands to prevent sticking and spread about ¼ cup of sushi rice evenly over the nori, leaving a 1-inch border at the top.
4. Lay two slices of yellowtail and some sliced scallions horizontally across the rice.
5. Roll the sushi tightly using the bamboo mat, applying gentle pressure. Seal the edge with a bit of water.
6. Use a sharp knife to slice the roll into 6-8 pieces. Serve with soy sauce for dipping.

The yellowtail scallion roll offers a beautiful presentation and a fresh taste that everyone will enjoy. This dish is perfect for sharing with friends or family, providing a delightful sushi experience in the comfort of your home.