Potato & Cheddar Flavour Perogies

dough 52.6% , water 23.7% , vegetable oil 11.8% , baking powder 5.9% , salt 0.8% , skimmed milk powder 0.8% , soya lecithin 0.8% , filling 0.8% , water 0.8% , salt 0.8% , cheddar 0.5% , sugar 0.2% , parmigiano reggiano 0.1% , onion 0.1% , garlic 0.0% , spice 0.0% , natural flavouring 0.0% , E330 0.0% , E160b 0.0%