Soak rice flour in water to make a smooth batter
Add a small amount of tapioca starch for flexibility, if desired
Mix in salt, if desired
Heat a nonstick pan or steam cloth over boiling water
Spread a thin layer of batter evenly on the hot surface
Steam or cook until the sheet turns translucent and sets
Lift the rice paper carefully with a spatula or hands
Place on a clean surface or drying rack
Dry completely until firm and pliable
Store in an airtight container once fully dry