Created by lazyme on February 6, 2015
Step 1: Into a large saucepan of salted boiling water stir rice and boil 10 minutes. Drain rice in a colander and rinse.
Step 2: Set colander over a kettle of boiling water (rice should not touch water) and steam rice, covered with a kitchen towel and lid, until fluffy and dry, 10 to
Step 3: 15 minutes (check water level in kettle occasionally, adding water if necessary).
Step 4: While rice is steaming, in a small saucepan bring 1/4 cup vinegar to a boil with sugar and salt, stirring until sugar is dissolved, and remove from heat.
Step 5: In a dry small skillet toast sesame seeds over moderate heat, stirring, until golden and fragrant and transfer to a small bowl.
Step 6: Transfer rice to a large bowl and stir in vinegar mixture. Cool rice and stir in sesame seeds, remaining 3 tablespoons vinegar, oil, ginger, scallions, carrot, and cucumber.
Step 7: Salad may be prepared up to this point 1 day ahead and chilled, covered. Bring salad to room temperature before proceeding.
Step 8: Dry-roast nori, 1 sheet at a time, directly above moderate heat (gas or electric burner), holding it at opposite corners and moving it back and forth, until it turns bright green, 30 seconds to 1 minute.
Step 9: With scissors cut nori into thin 2-inch-long strips.
Step 10: Peel and pit avocado. Quarter avocado and cut crosswise into thin slices.
Step 11: Add avocado to salad with surimi if using and two thirds of nori strips and toss well.
Step 12: In a small bowl stir wasabi powder into hot water and stir in cold water, soy sauce, and ginger juice.
Step 13: Serve salad sprinkled with remaining nori strips and drizzled with dressing.