01 - Rinse the sushi rice under cold running water until it runs completely clear. Cook the rice with 2¼ cups of water in a rice cooker or stovetop pot according to package directions. While the rice is still hot, fold in the rice vinegar, sugar, and salt using a gentle slicing motion. Allow the seasoned rice to cool to room temperature before handling.
02 - Heat a splash of vegetable oil in a skillet over medium heat. Add the panko breadcrumbs and stir continuously until they turn a uniform golden brown and become crisp. Transfer to a plate and set aside to cool completely.
03 - Combine the shredded imitation crab meat with Kewpie mayonnaise in a small mixing bowl. Toss until the crab is evenly coated and the mixture holds together.
04 - Place a sheet of nori shiny side down on a bamboo sushi rolling mat. With damp hands, spread a thin, even layer of seasoned sushi rice across the nori, leaving approximately a 1-inch border uncovered at the top edge.
05 - Flip the nori sheet so the rice side faces down. Lay the crab salad, avocado slices, and julienned cucumber in a neat horizontal line along the bottom edge of the nori.
06 - Using the bamboo mat as a guide, roll the sushi tightly away from you, applying even pressure. Seal the exposed top edge of nori with a light dab of water to close the roll.
07 - Sprinkle the toasted panko breadcrumbs evenly over the top of each completed roll, pressing gently so the crumbs adhere to the rice surface.
08 - Using a sharp knife wiped clean and dampened with water, slice each roll into 6 even pieces. Re-wet the blade between cuts for clean, smooth edges.
09 - Drizzle the unagi sauce and sriracha mayo across the top of the sliced pieces. Scatter sliced scallions and sesame seeds over the platter. Serve immediately with pickled ginger and wasabi on the side.