Put rice flour and potato starch in a plastic bag. Seal the bag and shake it to mix the powders. Mix well.
Put the powder mix in a plastic bowl.
Add boiling water to the center of the bowl, and mix with a spatula.
When the powder and water are mixed completely, knead it by hand in the bowl until the dough becomes glossy.
Let the dough rest for 20 minutes.
Knead the dough again for 2 minutes.
Divide the dough into 10 small pieces and roll each into a ball.
Using a piece of wax or parchment paper, lightly press on the dough to flatten it.
Use a rolling pin to stretch each piece to about a 4 inch circle.
Keep wrappers damp and covered until you're ready to use them.