Sticky toffee celebration cake

Toffee Flavour Buttercream 32.0% , sugar 20.5% , wheat flour 19.7% , toffee sauce 9.0% , egg 4.5% , rapeseed oil 4.5% , Humectant 4.5% , cocoa butter 2.7% , molasses 1.3% , whole milk powder 0.7% , corn starch 0.3% , cocoa paste 0.2% , caramelised sugar syrup 0.1% , Raising agent 0.0% , flavouring 0.0% , coconut oil 0.0% , Emulsifier 0.0% , glucose syrup 0.0% , Preservative 0.0% , salt 0.0% , milkfat 0.0% , whey 0.0% , lactose 0.0% , Acidity regulator 0.0% , sweetened condensed milk 0.0% , egg white 0.0% , palm oil 0.0% , butter 0.0% , Margarine 0.0% , palm oil 0.0% , rapeseed oil 0.0% , water 0.0% , flavouring 0.0% , vitamins 0.0% , vitamin A 0.0% , vitamin D 0.0% , invert sugar syrup 0.0%