This is a recipe for healthy, no-fry onion potato chips. Boil potatoes and onions, then blend them in a blender. Add tapioca flour, baking powder, and salt and mix well. Put the mixture into a piping bag, pipe thin strips onto a baking sheet, flatten them with the bottom of a glass, and bake in the oven. The result is a light and crispy snack that is satisfying despite being low in fat. It's easy to make, making it perfect for a home café snack or a snack while dieting.