Belgian chocolate cake bars

belgian dark chocolate 37.0% , icing sugar 19.9% , palm oil 17.3% , sugar 12.5% , rapeseed oil 6.6% , fat reduced cocoa powder 3.3% , water 1.7% , rice flour 0.8% , tapioca 0.4% , corn starch 0.2% , Raising agent 0.1% , sunflower oil 0.1% , soya flour 0.0% , oat flour 0.0% , flavouring 0.0% , milled brown flaxseed 0.0% , Humectant Egg free Milk free 0.0% , Emulsifier 0.0% , Thickener 0.0% , salt 0.0% , Preservative 0.0% , psyllium 0.0% , Colour 0.0%