Sieve into a medium bowl, 1/2 cup brown rice flour, white rice flour, tapioca starch, potato starch, 1/2 cup brown sugar, baking powder, baking soda, guar (or xanathan) gum, sea salt, and 1 tsp cinnamon.
Add to it 1/3 cup canola oil, the egg(s), applesauce, and chopped apples.
Stir lightly to combine and add additional liquid if needed. (Juice -- etc.).
Line muffin tins and oil a little bit to prevent any sticking.
Generously fill muffin cups with mixture.
Put ground cashews or almond meal into a small bowl with the 1 tbls brown rice flour, 2 tbls brown sugar, 1 tbls canola oil, and 1/2 tsp cinnamon.