Gluten Free Chocolate Sandwich Cremes

icing sugar 53.3% , flour blend 23.3% , cane sugar 5.5% , palm oil 5.5% , canola oil 5.5% , cocoa powder 3.4% , oat flour 1.7% , corn starch 0.9% , invert cane sugar 0.4% , natural flavouring 0.2% , salt 0.1% , E500ii 0.1% , soya lecithin 0.0% , E415 0.0% , Raising agent 0.0%