Dip the potato slices into the batter, and then set onto a rack over parchment paper (for easy clean up), to let the extra gluten free batter fall off. Once they're coated, place them into the preheated oil, be careful not to crowd the pot/deep fryer- do it in batches. Fry for 4-5 minutes, then remove and place onto a paper towel lined baking sheet. Finish frying all the potatoes.