National French Fry Day is July 13, and it honors what may be the single most beloved fried food on earth. A perfect fry, crisp on the outside and fluffy within, is deceptively hard to make, but the technique is easy to learn.

The double-fry secret

If your homemade fries have ever come out limp or greasy, the fix is almost always to fry them twice. The first fry happens at a lower temperature, around 325 degrees, and its job is to cook the inside of the potato until soft without browning the outside. After a rest to cool, the second fry goes hot, around 375 degrees, and its job is to build the crunchy golden shell. This two-stage approach is exactly how restaurants get fries that stay crisp.

Potato choice matters

Not every potato makes a good fry. Russets are the gold standard because they are high in starch and low in moisture, which is precisely what produces a fluffy interior and a crackly exterior. Waxier potatoes hold together well in a stew but turn dense and disappointing in the fryer. Cut your potatoes into evenly sized sticks so they cook at the same pace, and soak the raw cuts in cold water first to rinse away surface starch that would otherwise make them stick together.

The air-fryer alternative

Not everyone wants a pot of hot oil on a July evening, and the air fryer is a genuinely good shortcut. Toss your cut, dried potatoes with just a spoonful of oil, spread them in the basket, and cook, shaking once or twice so they crisp evenly. The result is not identical to deep-fried, but it is crisp, satisfying, and far lighter. It also skips the smell and the cleanup, which is no small thing.

Salt applied the instant the fries come out is the difference between good and unforgettable.

Salt and sauce

Timing the salt is the last crucial step. Season fries the very moment they leave the oil or the basket, while the surface is still hot and slightly damp, so the salt clings instead of sliding off. Then think about the dip, because a fry is a perfect delivery system for sauce. Garlic aioli, a quick fry sauce of mayo and ketchup, or a splash of malt vinegar all elevate the humble fry into something worth celebrating on its very own day.

How to celebrate

  1. 1
    Double-fry for the crisp

    The secret to great fries is frying twice. Cook the cut potatoes low, around 325 degrees, until soft but pale, let them cool, then fry again hot, around 375, until golden. The first fry cooks the inside; the second builds the crunchy shell.

  2. 2
    Choose a starchy potato

    Russets are the classic fry potato because their high starch and low moisture fry up fluffy inside and crisp outside. Waxy potatoes stay dense and never quite get there. Cut them into even sticks so they cook at the same rate.

  3. 3
    Try the air-fryer route

    For a lighter version, toss cut potatoes with a spoonful of oil and air-fry, shaking the basket partway through. They will not be quite as decadent as deep-fried, but they get genuinely crisp with a fraction of the oil. Soak and dry the cut potatoes first for the best texture.

  4. 4
    Salt immediately, dip generously

    Salt fries the instant they come out while the surface is still glistening so it actually sticks. Then go beyond ketchup: garlic aioli, fry sauce, and malt vinegar all bring something different. A great dip turns a side into the main event.