Salmon Wellington with a creamy dill & cheese sauce

salmon 37.0% , wheat flour 21.1% , Margarine 15.0% , water 15.0% , cream 15.0% , corn 1.6% , potato 1.6% , whey powder 1.6% , whole milk powder 1.6% , salt 1.6% , cream 1.6% , sugar 1.5% , natural flavouring 1.5% , rapeseed oil 1.5% , shrimp 2.0% , white wine 1.6% , emmental 1.5% , butter 1.5% , parsley 0.0% , mustard 0.0% , onion powder 0.0% , garlic powder 0.0% , leek 0.0% , parsnip 0.0% , carrot 0.0% , lovage 0.0% , thyme 0.0% , bay leaf 0.0% , E920 0.0% , milk proteins 0.0% , glucose syrup 0.0%