Luxury Fish Pie

potato 34.0% , fish 19.0% , water 3.4% , milk 3.4% , mature cheddar 3.4% , King Prawns 3.4% , double cream 3.4% , single cream 3.4% , rapeseed oil 2.3% , white wine 2.3% , onion 2.3% , wheat flour 2.3% , corn flour 2.3% , dijon mustard 2.3% , butter 2.3% , salt 0.3% , parsley 0.0% , chives 0.0% , Dried Wheat Germ Sourdough 0.0% , yeast 0.0% , white pepper 0.0%