Chocolate Chocolate Muffin

sugar 52.8% , flour 23.6% , liquid whole egg 11.8% , water 5.9% , soya oil 3.0% , palm oil shortening 1.5% , milk chocolate chips 0.7% , cocoa powder 0.4% , semi-skimmed milk 0.2% , modified corn starch 0.1% , baking powder 0.0% , natural and artificial flavouring 0.0% , E202 0.0% , salt 0.0% , E481 0.0% , E415 0.0% , E412 0.0% , E575 0.0%