Choose the right pommes of potatoes: flaky pommes sold for frying French.
Rinse the starch in the friezes of French waters.
In a medium hot oil blanch the fried ones until tender and fluffy.
Fry the fries in very hot oil for a second time until they are golden brown and crunchy.
Immediately eat the friezes. It should only be used for 30 minutes a day.