Creamy Scalloped Potatoes

potato 52.8% , wheat flour 23.6% , milk 11.8% , salt 0.5% , dehydrated onion 0.5% , potato flour 0.5% , modified corn starch 0.5% , palm oil 0.5% , cheddar 0.5% , spice 0.5% , E500ii 0.5% , sugar 0.5% , blue cheese 0.5% , dried garlic 0.5% , celery 0.5% , E339ii 0.5% , E340ii 0.5% , monoglycerides 5.3%