Crinkle-cut fries are one of those things that feel like they should require a restaurant kitchen. They don't. With a wavy blade and an oven or air fryer, you can go from raw potato to a tray of crispy, ridged fries in about 25 minutes. Here's exactly how.
What you need
- 2 large russet potatoes (russets get crispiest; Yukon golds work but stay softer)
- 1 tablespoon oil (avocado, canola, or olive)
- Salt
- A wavy/crinkle blade — a rotary slicer like the Pickwick 5-in-1 does this in under a minute, or a crinkle cutter and a steady hand
Step 1: Cut the potatoes
Wash and dry the potatoes. You can peel them or leave the skin on. Cut each potato in half lengthwise so it fits the chute, then load it and turn the handle with the wavy blade in. You'll get uniform ridged slices in seconds. If you want thicker "steak fry" style, stack two slices and cut them into sticks with a knife.
If you're using a hand crinkle cutter, cut the potato into planks first, then cut the planks into sticks, keeping the blade perpendicular so the ridges line up.
Step 2: Soak (this is the step people skip)
Put the cut potatoes in a bowl of cold water for 15 minutes. This pulls out surface starch, which is what makes fries gummy instead of crisp. Drain and pat them completely dry with a towel. Wet potatoes steam instead of crisp.
Step 3: Oil and season
Toss with the oil and a generous pinch of salt. You want every surface lightly coated but not dripping. Add garlic powder, smoked paprika, or black pepper here if you like.
Step 4: Cook
Oven: 425°F, single layer on a parchment-lined sheet, 20–25 minutes, flipping halfway. Don't crowd the pan — two trays beats one packed tray.
Air fryer: 400°F for 14–18 minutes, shaking the basket twice. Work in batches so air can move around each fry.
They're done when the ridges are deep golden and the edges are crisp.
Why crinkle-cut fries taste better
The ridges roughly double the surface area of a flat fry, so you get more crisp exterior per bite while the inside stays fluffy. It's also why they hold sauce so well.
Common mistakes
- Skipping the soak — the number one cause of limp fries.
- Not drying them — water is the enemy of crisp.
- Overcrowding — fries need space or they steam.
- Uneven cuts — thin ones burn while thick ones stay raw. A rotary slicer keeps every slice the same thickness, which is the real reason it beats a knife here.
Once you've done this once, it takes less time than waiting for delivery. Salt them the second they come out.