Peel the potatoes and cut them into thin slices or strips.

In a bowl, combine the cornstarch, baking powder, salt, and black pepper.

Toss the potato slices/strips in the cornstarch mixture until well coated.

Heat vegetable oil in a deep frying pan or pot.

Fry the coated potato slices/strips in batches until golden brown and crispy. Avoid overcrowding the pan.

Remove the crispy potatoes from the oil and drain them on paper towels.

Season with additional salt and pepper if needed.

Serve the Incredibly Crispy Potatoes hot and enjoy!