Moist cake with streusel topping and cinnamon filling

sugar 51.1% , water 24.4% , egg 12.2% , fortified wheat flour 6.1% , E1200 3.1% , E422 1.5% , invert sugar 0.8% , inulin 0.4% , contains 2% and less of 0.2% , artificial flavouring 0.1% , E160ai 0.0% , butter 0.0% , E170i 0.0% , canola oil 0.0% , E150a 0.0% , E330 0.0% , corn 0.0% , corn oil 0.0% , corn starch 0.0% , corn syrup 0.0% , corn syrup solids 0.0% , cream cheese 0.0% , dextrose 0.0% , Modified starch 0.0% , E412 0.0% , cottonseed 0.0% , soya oil 0.0% , interesterified soybean oil 0.0% , Raising agent 0.0% , E471 0.0% , skimmed milk 0.0% , pea fiber 0.0% , E435 0.0% , E202 0.0% , E216 0.0% , E281 0.0% , E200 0.0% , propylene glycol mono- and diesters of fatty acids 0.0% , salt 0.0% , E481 0.0% , soya oil 0.0% , soya lecithin 0.0% , spice 0.0% , E415 0.0%