preheat the oven to 170℃ and line a 30 * 40 cm baking sheet with parchment paperSift the icing sugar rice flour and almond flour togetherWhip the egg whites sugar and albumen to create a meringueMelt the chocolate to 40~45℃and add it to the meringue.Fold the dry ingredients into the meringue.Spread the mixture evenly over the prepared baking sheet to a height of 1cm.Bake for 10~12 minutes then set aside to cool Cut the cake into 2 * 16 cm rounds and the freeze