In a food processor using the grater blade: grate potatoes then transfer to bowl.

Remove slicing blade and change to cutting blade then return half of the grated potatoes to food processor and pulse until it is a saucy consistency.

Transfer to a bowl and then pulse the remaining grated potatoes and pour into bowl containing the rest of the processed potatoes.

Add salt and cornstarch.

Mix well, then spray waffle iron with a non-stick cooking spray and pour 1 cup on hot griddle. Close lid and cook until potatoes are crisp and golden.  Serve hot.