Ok, originally this was posted on some Utah based Gluten Free site but I can’t find it anywhere. I have just seen different versions of this blend. This is the one I have used and liked so far. A big reason I love so much is that you can pick up almost all the materials (not brown rice flour) at the Asian market for cheap, relative to other gluten free things;).
3 cups white rice flour
3 cups brown rice flour
2 cups potato starch (not flour)
1 cup tapioca starch
I get the white rice flour for 99 cents a pound, potato starch, and tapioca starch for $1.49 a pound (I think) all at the R&N Market at Cedar and Herndon but any local Asian market where you are at should the best prices. Then I got the Bob’s Red Mill Rice Flour Brown, 48-Ounce (Pack of 4) for $21.68 (which is a lot of brown rice flour).
I mixed it together and leave it in a bin!