Hand cooked cheddar and onion crisps

potato 286.1% , vegetable oil 27.9% , mature cheddar 1.7% , dehydrated onion 0.0% , buttermilk powder 0.0% , whey powder 0.0% , salt 0.0% , spring onion 0.0% , yeast extract 0.0% , yeast powder 0.0% , parsley 0.0% , Dried Scottish Cheddar cheese 0.0% , Acid 0.0% , flavouring 0.0% , Colour 0.0%