Use a large, sweet potato. Wash and peel and slice them in rounds of about ¼ inch thick. Keep aside.
In a bowl take breadcrumbs, add ½ tsp salt and ¼ tsp black pepper, and mix it all well.
In another bowl mix all-purpose flour, corn starch, ½ tsp salt, and ¼ tsp black pepper. Add the water slowly and make it into a thick batter. I used about 1/3 cup of water.
I am using parchment paper over air fryer baking tray oil the parchment paper.
Coat both sides of a sweet potato slice in the flour batter and then in the breadcrumb mixture. Shake off any excess breading and transfer the sweet potato slices to an airfryer baking sheet. Repeat with the remaining sweet potato slices.
Spray the slices with oil.
Bake in air fryer for 10 minutes (on 325-degree Fahrenheit). Then turn the sweet potato slices and bake it again for 10 minutes. Maybe you will have to adjust the time and temperature according to your air fryer.
The sweet potatoes will have a nice crunch. You may serve them hot or at room temperature with your favorite garnishing. I prefer with yogurt and chutney.