Steamed rice rolls drizzled with soy sauce and sesame are a silky, light breakfast. A vegetarian, healthy family dish with fresh, clean flavors.
Mix rice flour, tapioca starch, and water in a large bowl until very smooth, with no lumps remaining.
Rest the batter for 10 minutes to fully hydrate the flours and achieve silky texture.
Bring a wide steamer or large wok with steaming rack to a rolling boil over high heat; lightly grease a flat heat-safe tray or dish.
Pour a thin, even layer of batter onto the tray, cover tightly, and steam over high heat for 3–4 minutes until just set and glossy.
Carefully lift and roll the steamed sheet while hot using a spatula for easy release, then transfer to a serving plate and repeat with remaining batter, re-greasing the tray as needed.
Drizzle finished rice rolls with soy sauce mixed with sugar and a splash of sesame oil, then top with chopped green onion before serving.