Potato starch and potato flour are different ingredients that cannot be used interchangeably in recipes (potato flour is the whole potato, dehydrated and ground finely while the starch is just the starch alone). If you are looking for a substitute for potato flour, you can use real mashed potatoes in this recipe! It may seem like a strange ingredient, but it helps to keep the bread moist and fresh for longer. Happy baking! Kye@KAF

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