Chocolate covered sponge cake with creamy filling

sugar 51.7% , oil 24.2% , cocoa processed with alkali 12.1% , distilled monoglycerides 6.0% , soya lecithin 3.0% , whey 1.5% , natural and artificial flavouring 0.8% , water 0.4% , wheat flour 0.2% , sugar 0.1% , corn syrup 0.0% , high fructose corn syrup 0.0% , vegetable 0.0% , animal fat 0.0% , E471 0.0% , E435 0.0% , dextrose 0.0% , contains 2% and less of 0.0% , sugar 0.0% , modified corn starch 0.0% , glucose 0.0% , Raising agent 0.0% , E422 0.0% , salt 0.0% , E200 0.0% , E516 0.0% , enzyme 0.0% , E102 0.0% , E129 0.0% , wheat flour 0.0%