>>Define 'crispy'. Do you want them to snap when bent like crispy bacon? How crisp is crispy?
>
>The discussion started, really, with McDonald's "fries" always being "crispy", so use those as your guide.

But their fries are frozen. Not a good comparison. I have made crispy fresh fries, but the oil had to be pretty hot to start with and could not put many fries in at a time or it cools the oil down.