The recipe in the Basic Cookbook only needs rice flour, bicarbonate of soda and cream of tartar. There’s even a recipe to make your own rice flour. So really you need rice, not rice flour.
After milling your own rice flour you just need to place 50g into the bowl and add 50g bicarb soda and100g cream of tartar. Mix 10 sec on speed 5 and you’re done.
How easy is that?!