I use rice flour but not much. I use sorghum flour more often, along with sweet potato flour/starch and tapioca starch. And buckwheat flour. Rice flour is very gritty to me (and my DS hasn't been able to have it for the last 18 months, he's just getting rice back on rotation). There are also different types of rice flour: rice flour, brown rice flour, sweet rice flour, and glutinous rice flour.