Take the first 4 ingredients and mix in a bowl. Next beat the Egg and add it to the Club Soda. Pour the Egg mix into the dry mix; add the Vanilla & Brown Sugar. Mix, adding more pure Club Soda until desired thickness.
A thin batter is desirable if the protein is to be stir fried after cooking. A thick batter is desirable if the protein is served with a sauce.
Dredge the protein in the Brown Rice Flour. Then dip it in the batter mix. Let excess fall off and then place in fryer.