Scalloped Potatoes in a Rich, Creamy Sauce Mix

enriched flour (wheat flour, niacin, iron, thiamin mononitrate, riboflavin, folic acid, cornstarch, whey, salt, palm oil, dehydrated onion, natural flavor, dehydrated celery, leavening, sodium caseinate, paprika, dipotassium phosphate, guar gum, annatto extract, sodium bisulfite and tbhq