Sweet Potato Fries

Sweet Potato Fries
⏱️ cook time 35 minutes
🍽️ servings 4
⚡ Difficulty easy

intro

Crispy, caramelized baked sweet potato fries with a perfect salty-sweet crunch, a lighter, non-greasy alternative to deep-fried fries ideal for sharing.

Ingredients

Skin-on sweet potatoes 900g (3 medium)
Cornstarch 2 tablespoons (16g)
Extra-virgin olive oil 3 tablespoons (45ml)
Kosher salt 1 teaspoon (3g)
Smoked paprika 1/2 teaspoon (1g)
Garlic powder 1/4 teaspoon (0.8g)
Freshly ground black pepper 1/4 teaspoon (0.5g)

Steps

1

Cut sweet potato sticks

Scrub 900g of sweet potatoes thoroughly under cool running water, pat completely dry with paper towels, and leave skins intact. Cut each potato into uniform 1cm (1/2-inch) thick sticks, keeping all pieces consistent in width to ensure even cooking; discard any paper-thin end pieces that will burn during baking.

Step 1
step1:Cut sweet potato sticks
2

Coat with cornstarch

Transfer all cut sweet potato sticks to a large dry mixing bowl. Sprinkle 2 tablespoons of cornstarch evenly over the top, then toss vigorously for 1 full minute until every fry has a thin, even dusting of cornstarch, with no dry clumps of powder left at the bottom of the bowl.

Step 2
step2:Coat with cornstarch
3

Oil and season fries

Drizzle 3 tablespoons of extra-virgin olive oil over the cornstarch-coated fries, then add 1 teaspoon kosher salt, 1/2 teaspoon smoked paprika, 1/4 teaspoon garlic powder, and 1/4 teaspoon freshly ground black pepper. Toss for 45 seconds until every fry is evenly glistening with oil and coated in seasoning, with no dry powdery spots remaining.

Step 3
step3:Oil and season fries
4

Prep oven and sheets

Preheat oven to 220°C (425°F) with racks positioned in the upper and lower thirds of the oven. Line two large rimmed baking sheets with parchment paper, then spread the fries in a single, completely uncrowded layer across the sheets, ensuring no fries touch or overlap to prevent steaming.

Step 4
step4:Prep oven and sheets
5

Bake first side

Place both baking sheets in the preheated oven and bake for 15 minutes without opening the oven door, until the undersides of the fries are deep golden and slightly crisp when gently prodded with a spatula.

Step 5
step5:Bake first side
6

Flip and finish baking

Use a thin metal spatula to flip each fry individually, then swap the positions of the two baking sheets (move the top sheet to the lower rack and the bottom sheet to the upper rack) to ensure even browning. Bake for an additional 10 minutes, until fries are crispy on all edges, caramelized, and tender when pierced with a fork.

Step 6
step6:Flip and finish baking

Tips

1.Avoid overcrowding baking sheets: if fries are stacked or touching, they will steam instead of crisping—use a third baking sheet if you do not have enough space to spread them in a single layer.
2.Do not peel the sweet potatoes: the skin adds extra texture, fiber, and nutty flavor, just be sure to scrub all surface dirt off completely before cutting.
3.Let fries rest for 2 minutes after removing them from the oven before serving: the crispy outer crust will set as they cool slightly, preventing sogginess.

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Sweet Potato Fries:Frequently Asked Questions

1.Why do my baked sweet potato fries always turn out soggy instead of crispy?
Sogginess almost always stems from three easy-to-fix missteps: overcrowding the baking sheet, skipping the surface-drying step, or using too much oil. After cutting, pat fries completely dry with paper towels, toss with a thin, even cornstarch coating, arrange in a single layer with space between pieces, and you’ll get that perfect crunch without deep frying.
2.Do I really need to leave the sweet potato skins on for this recipe?
You can absolutely peel them if that’s your preference, but leaving the skin on adds wonderful textural contrast, extra fiber, and a subtle earthy note that balances the sweet, caramelized flesh. Just be sure to scrub the skins really well under cool running water to remove any dirt or rough blemishes before cutting to avoid gritty bites.
3.What purpose does cornstarch serve, and can I skip it if I don’t have any on hand?
Cornstarch creates a thin, dry, starchy coating on the fry surface that crisps up beautifully in a hot oven, mimicking the crunchy exterior of deep-fried fries without all the grease. If you don’t have it, you can substitute arrowroot starch in the same amount, but skipping it will lead to softer, less crisp fries overall.
4.How thick should I cut the sweet potato fries for the best texture?
Aim for uniform 1/4-inch thick sticks, roughly the width of a standard pencil. Cutting them too thick means the inside will cook through before the outside crisps, while cutting them too thin leads to burnt, shriveled edges before the interior turns tender. Consistent sizing ensures every fry cooks at the exact same rate.
5.Can I use a different oil instead of extra-virgin olive oil for this recipe?
You can swap in avocado oil, regular light olive oil, or melted refined coconut oil if that’s what you have in your pantry. Skip strongly flavored oils like toasted sesame oil or unrefined coconut oil, as they’ll overpower the fries’ sweet, smoky flavor. Stick to 1-2 tablespoons of oil per pound of potatoes to avoid sogginess.
6.What oven temperature works best to get crispy fries without burning them?
Preheat your oven to 425°F, and use a heavy, rimmed baking sheet for even heat distribution. If your oven runs hot, drop the temperature by 25°F to prevent the smoked paprika and natural potato sugars from burning before the fries crisp. Avoid temps below 400°F, as that will steam fries instead of crisping their exterior.
7.Do I need to flip the fries while they’re baking?
Yes, flip them once halfway through the total bake time, usually around the 15-minute mark, using a thin, flexible spatula. This lets every side get direct contact with the hot baking sheet for even browning and crunch on all surfaces. Don’t stir them too early, though—they’ll stick and tear if the coated side hasn’t set first.
8.Can I add other seasonings besides smoked paprika and kosher salt?
Absolutely! Smoked paprika and kosher salt make a perfect, balanced base, but you can mix in garlic powder, onion powder, a pinch of cayenne for heat, dried oregano, or a light sprinkle of parmesan right after the fries come out of the oven. Wait to add fresh herbs until the last minute so they don’t burn.
9.How do I keep the fries from sticking to my baking sheet?
First, line your sheet with parchment paper for easy release, or use a well-seasoned cast iron baking sheet. Make sure your oven is fully preheated before adding the fries, and don’t try to move or flip them for the first 15 minutes of baking—this gives the starchy coating time to set and crisp so it won’t stick.
10.Can I make these fries ahead of time for a party or game night?
These fries taste best served right out of the oven, but you can prep components ahead to cut down on day-of work: cut the potatoes, soak them in cold water for 30 minutes, dry them fully, and store in an airtight bag in the fridge for up to 24 hours. Wait to toss with cornstarch, oil, and seasonings right before baking.
11.Why do the edges of my fries burn before the middle gets tender?
This usually happens if your cuts are uneven, your oven temperature is running too high, or you’ve placed the baking sheet too close to the top heating element. Use an inexpensive oven thermometer to confirm your temperature is accurate, cut all fries to a uniform 1/4-inch thickness, and bake on the middle rack for even heat.
12.Can I make these crispy sweet potato fries in an air fryer instead of the oven?
Absolutely! Toss the prepared, cornstarch-coated, oiled fries in your air fryer basket in a single layer (work in batches if needed to avoid overcrowding) and cook at 400°F for 18-22 minutes, shaking the basket halfway through. You’ll get extra-crispy fries in slightly less time, with the same great smoky, sweet flavor.
13.What dips pair best with these crispy baked sweet potato fries?
They pair beautifully with a wide range of dips! Classic, crowd-pleasing options include garlic aioli, spicy chipotle mayo, tangy ketchup mixed with a pinch of extra smoked paprika, or cool herbed yogurt dip. The fries’ salty-sweet, smoky flavor balances rich, creamy, or slightly tangy dips perfectly for casual meals or sharing.

Comments (11)

just now

Took these to a work potluck today and three different people asked me for the recipe before I even left the office. Who knew baked sweet potato fries could be such a showstopper? Crispy, perfectly seasoned, not greasy at all, and SO good. I’ll be making these for every potluck from now on, tbh.

5 minutes ago

Just pulled these out of the oven and they are DELICIOUS! I didn’t have cornstarch so I used arrowroot powder instead and they still got perfectly crispy, for anyone who needs a substitution. Dipping them in honey mustard right now, zero regrets.

30 minutes ago

As someone who only has a tiny dorm oven and basically zero cooking skills, these were shockingly easy to pull off! Cook time was exactly 35 minutes like the recipe said, no guesswork. Only thing I messed up was salting them a little too heavy right out the oven, oops. Still ate the whole batch while binging my show last night, it was totally worth the extra salt.

2 hours ago

I was skeptical that baked fries could ever be crispy enough for my liking, I usually fry everything on the weekends. But my wife has been asking for healthier sides, so I gave these a shot. Shockingly good! Got that perfect crunchy outside, fluffy inside, didn’t even miss the deep fryer. Will be making these alongside burgers at our next backyard cookout.

30 minutes ago

Wait have you tried tossing them with a little smoked paprika? Game changer for pairing with grilled burgers, I did that last cookout and everyone raved.

5 minutes ago

Love that these won over a self-proclaimed fried food fan! They’re a perfect cookout side because you can pop them in the oven while you’re manning the grill, no extra fryer setup needed.

yesterday

Made these earlier today while watching the game, way better than the frozen fries I usually make. Like, shockingly easy for how good they are. I didn’t even measure the spices, just tossed with what I had in the cabinet (garlic powder, paprika, a little black pepper) and they slapped. 10/10 no notes.

2 hours ago

Dude these are my go-to game day snack now too! I make a big batch and set out a bunch of different dips, people always hover around the fry platter the whole game.

30 minutes ago

Love the no-measure spice approach! Cooking should be flexible, so glad these worked out with whatever you had on hand for your game day spread.

2 days ago

Made these to go with our taco night spread earlier this week and they were the perfect side! I tossed mine with a little chili powder and cumin before baking to give them a tiny southwestern kick, and dipped them in guac. *Chef’s kiss* Only note: make sure you spread them in a single layer on the baking sheet, I overcrowded my first pan and those ones were a little soft.

yesterday

Ooh the chili powder and cumin addition sounds chef’s kiss, I’m definitely trying that next batch! I made the overcrowding mistake my first time too, totally worth using a second baking sheet for the crisp.

2 days ago

OMG these came out SO crispy! I’ve tried so many baked sweet potato fry recipes that turn out soggy no matter what I do, but the trick of tossing them in a little cornstarch before baking? Game changer. My 7 and 9 year old ate every last bite with their chicken nuggets at dinner the other night, already added this to our weekly rotation.

yesterday

So glad the cornstarch trick worked for you! Nothing better than a veggie side the kids actually get excited about, thanks for the lovely review!

3 days ago

Made these for my roommate potluck over the weekend and they were gone in 10 minutes flat! I paired them with a spicy vegan aioli and everyone was begging for the recipe. Super easy to throw together even when you’re juggling 3 other dishes for a group. 10/10 will make again.

2 days ago

Wait what’s in your spicy aioli? That sounds perfect with these fries, I’ve been using plain ketchup and it’s good but I need an upgrade!

2 days ago

That potluck spread sounds amazing! So glad these were a crowd hit — if you want a fun dip idea, our sriracha lime mayo dip linked in the recipe notes pairs perfectly too!

5 days ago

These were just okay for me? I followed the recipe exactly, even used the cornstarch, but a lot of mine stuck to the parchment paper and came out a little soggier than I expected. Maybe I cut them too thick? I’ll try cutting them thinner next time and see if that helps, the flavor was definitely good even if the texture was off.

3 days ago

So sorry the texture didn’t turn out perfect for you! Cutting them into uniform 1/4 inch sticks, making sure they’re not overlapping on the pan, and flipping them halfway through cook time usually helps with both sticking and sogginess. Hope the next batch turns out perfectly crispy!

1 week ago

These hold up so well for meal prep! I made a big batch on Sunday, portioned them out with grilled chicken and roasted broccoli for my work lunches all week, and they crisp right back up perfectly after 2 minutes in the air fryer at the office. Way better than the fast food fries I used to grab on my lunch break.

5 days ago

Wait do you reheat them straight from the fridge? I tried meal prepping sweet potato fries once and they got all mushy when I microwaved them, maybe the air fryer trick is the move!

5 days ago

Great call using these for meal prep! If you don’t have an office air fryer, reheating them on a baking sheet in a toaster oven for 3-4 minutes also works great to bring back that crisp, no sogginess!

2 weeks ago

I’ve been making sweet potato fries for years and I always thought you had to fry them in oil to get that good crunch. Color me wrong! These baked ones were just as crispy, and I didn’t have to deal with a big pot of hot oil splattering all over my stove. My grandson said they’re better than the ones we get at the burger joint down the street, which is high praise!

1 week ago

There’s no higher praise than a kid (or grandkid!) saying a homemade recipe beats restaurant takeout. So happy you gave the baked method a shot, thanks for sharing!