Angel food cake is truly heavenly, and you (as well as your family or guests) will love this gluten-free version.
My recipe calls for 1/4 cup millet flour with the option of using rice flour instead. However, some people have had trouble with the cake falling out of the pan while it is cooling. This might be due to using rice flour which is heavier. If you don’t have millet flour, make sure the rice flour is very fine, and you might need to use a little less than called for. I recommend using millet flour, but if not, you might give the cake a trial run.