To reheat french fries without leaving them soggy lay fries on a small baking sheet, lightly spray with PAM (no, not her; the no-stick cooking spray!) Pop under the broiler for 2 minutes, turn the fries over on the sheet and pop back under the broiler for another minute. They will come out nice and crispy like they were originally! Another variation is using the garlic spray instead and you have garlic fries that you can add a little pepper after reheating and they're marvelous!!