Bûche aux éclats de biscuits

sugar 53.1% , wheat flour 23.4% , fresh egg 11.7% , vegetable fat 5.9% , cocoa powder 2.9% , water 1.5% , starch 0.7% , whey 0.4%? , Raising agent 0.2%? , Acidity regulator 0.1% , Emulsifier 0.0% , salt 0.0% , Preservative 0.0% , soya lecithin 0.0% , Stabiliser 0.0% , arômes identique naturel 0.0%?

? — listed for this product but not on the label in this language; recipes can differ by market.