Mash the potatoes with a fork in a large mixing bowl.
Mix in all the remaining ingredients from parmesan to pepper.
Mix vigorously until the mixture has a smooth consistency.
Spoon the potato purée into a piping bag.
Heat oil in a deep frying pan (c. 1.5 inches) and pipe the potato purée into the oil in a large spiral shape.
As soon as the spiral has turned a golden brown you can remove it from the oil with a strainer ladle.
The potato mixture should make 4 or 5 giant curly fries, depending on how big you make them. Choose your favorite condiment (e.g. ketchup, aioli, ranch dressing) for dipping and go for it!