Toss the cut sweet potatoes in cornstarch before the oil. Sweet potatoes lack the starch that crisps a russet, and that thin cornstarch coat is what builds a crisp shell instead of a limp, steamy fry.
By Vince Gonzalez · Published July 2026 · Sourcing verified 5 Jul 2026
Prep15 min
Cook25 min
Makes4 servings
CuisineAmerican
Cost$
VeganGluten-free
The Ingredients — and where to get them
Cook for4servings
Sweet potatoes
Peeled and cut into even sticks. Firm, heavy ones roast best. Fresh, bought local.
2 large
Local / market
Cornstarch
The dry coat that builds the crisp shell. Local.
2 tbsp
Local / market
Oil
To roast the coated sticks. A neutral high-heat oil.
Can you make Sweet Potato Fries in an air fryer? — Yes
Yes — this is exactly what an air fryer does well. Work in a single layer so the air can move, and shake or flip halfway for even crisping. It runs a touch faster than the oven, so check early.
Can you freeze Sweet Potato Fries? — Not ideal
You can, but the crisp coating softens. Freeze the cooked pieces, then re-crisp them in a hot oven or air fryer — never the microwave.
Can you make Sweet Potato Fries ahead of time? — Prep ahead
Best fried to order — the crunch fades if it sits. Do the breading or shaping ahead and cook it fresh when you serve.
Is Sweet Potato Fries gluten-free? — Yes
Yes — nothing in this recipe as written contains gluten. As always, glance at the labels on any packaged items (broth, sauces, chocolate), since brands vary.
Is Sweet Potato Fries vegan? — Yes
Yes — no meat, seafood, dairy, egg, or honey in it as written.
Community Notes
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