Peel and boil potatoes for 20-25 mins until soft
Mash them until smooth
Add all seasonings and cornstarch, mix well
Transfer into an ice bag or piping bag
Let it chill in the fridge for 30 mins
Cut into long rectangle shapes, then cut in half
Deep fry in hot oil until golden and crispy
Gently lift with a spatula while frying to keep the shape
Top with parmesan, parsley, and garlic mayo sauce
