Crispy Baked Sweet Potato Fries

Prep 10 mins
Cook 25 mins
Total 35 mins

Super crispy and perfectly seasoned Baked Sweet Potato Fries! Only need 4 ingredients to make this mouthwatering snack or side dish.

Bowl of baked sweet potato fries with two dipping sauces on the side.

Crispy Baked Sweet Potato Fries

Say hello to these healthy and flavorful Baked Sweet Potato Fries! Fresh from the oven, these crispy fries are a delicious and nutritious alternative to regular french fries. Your kids will love them for an after school snack or a special treat. 

Packed with nutrients, this recipe is perfect for when you’re craving fast food. Yes, healthy junk food is a thing! Sweet potato fries are naturally gluten-free and vegan friendly, plus they go great with burgers, chicken, and all of your favorite dipping sauces.

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I love that they’re low maintenance, needing just 4 ingredients and 30 minutes in the oven. Plus, you can chop the potatoes ahead of time and store them in a ziploc bag in the fridge for when you need a snack in a pinch! You’ll be enjoying plate after plate of these perfectly crispy and seasoned healthy fries in no time.

Sweet potato fries on parchment paper being dipped into ketchup.

Are Baked Sweet Potato Fries Healthy?

I love this recipe because it’s a healthy treat that kids actually love. Sweet potatoes have slightly more carbs and calories than regular white potatoes, but contain more antioxidants, fiber, and vitamins A, C, and B6. Additionally, baking the fries uses significantly less oil than deep frying, which lessens the fat and calorie content.

Sweet potatoes on parchment paper with oil, cornstarch, salt and pepper.

Only 4 Easy Ingredients

This is all you need to make this recipe:

  • Sweet potatoes
  • Cornstarch
  • Olive oil
  • Salt and fresh cracked pepper

It doesn’t take much to spruce up these fries. The light seasonings compliment the natural sweetness from the potatoes, but if you like a little extra flavor or heat, add a few pinches of garlic powder, paprika, parmesan cheese, or a touch of cayenne to the finished fries.

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The Magic of Cornstarch

You may be wondering: why are we adding cornstarch before baking? It just so happens to be the secret to super crispy baked sweet potato fries. Tossing the cut fries in olive oil and cornstarch acts as a coating that will adhere to the outside of the potato, crisping it up as it bakes.

Sweet potato fries in a bag with cornstarch.

Preparing The Sweet Potatoes for Homemade Fries

These fries won’t be soggy and will cook evenly as long as we follow each step precisely. Here’s how I achieve super crispy sweet potato fries:

  • Peel The Potatoes: The potatoes will be able to soak in the oil, cornstarch, and seasonings easily once their skin is removed. 
  • Cut The Fries Evenly: Slice the fries into even sizes and widths to allow for even cooking. If the fries are all different sizes, they’re more likely to cook inconsistently (meaning burnt or undercooked fries).
  • Give Them A Bath: This step is optional, but once the fries are cut, you can toss them a bowl with cold water. Letting them soak for up to 12 hours will remove any access starch and help them become more crispy in the oven. Once they’re finished soaking, thoroughly rinse the fries and dry them well. 
  • Lay Them Flat: Like I said, we have to be precise! Lay the fries flat and spaced apart on the baking sheet before roasting. If they’re piled on top of each other, the fries on the bottom won’t stand a chance of cooking properly.

Bowl lined with parchment paper and filled with sweet potato fries and two dips.

How to Make Sweet Potato Fries In The Oven

You can’t get crispy fries without high heat! 425ºF is the optimum temperature to bake sweet potato fries. Any lower and they’ll turn out soggy.

  1. Preheat the oven to 425°F. Line a large cookie sheet with parchment paper or non-stick aluminum foil.
  2. Place the cut fries in a large ziploc bag or bowl and drizzle 2 tablespoons of olive oil overtop. Shake the bag or mix the fries until they’re evenly coated. Next, sprinkle in the cornstarch and mix again until everything is covered.
  3. Add 1 final tablespoon of olive oil and mix until the white from the cornstarch disappears. Sprinkle the salt and pepper overtop and toss the fries one last time!
  4. Lay out the sweet potato fries evenly, in a single layer, on the baking sheet. Roast them for 25 to 30 minutes, flipping halfway through. 
  5. The fries are best served fresh and hot out of the oven. Finish with an extra sprinkle of salt and pepper or any of your favorite seasonings and enjoy!

How to Make Sweet Potato Fries In An Air Fryer

Spend a little less energy by making these fries in an Air Fryer instead of the oven. To do this, prepare the potatoes as you would when baking the fries. Use only 1 ½ tablespoons of olive oil when tossing the fries with cornstarch and seasonings. Heat the Air Fryer to 375ºF, and lay the fries in an even layer on the tray (fry in batches if you need to). Cook each batch for 15-17 minutes, flipping the fries halfway.

Sweet potato fries on parchment paper with herbs on top.

Can I Make These Ahead Of Time?

Sweet potato fries are a perfect snack to prepare well ahead of time. I like to cut up my potatoes and store them in a ziploc bag in the fridge until I need them. This way, all I have to do is season, bake, and serve the fries an out-of-the-box after school snack or a fun late night treat in no time!

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How To Serve Baked Sweet Potato Fries

These fries are excellent as a healthy alternative to regular junk food or as a side dish for both lunch and dinner. Whip up a few of my Crock Pot Pulled Pork Sandwiches with these fries on the side, or create a hearty and satisfying weeknight meal by enjoying them with my favorite juicy baked chicken.

Don’t forget the dipping sauce! I love these super simple fries dipped in regular ketchup and mayonnaise, but they’re also tasty with chipotle mayo, barbeque sauce, ranch dressing or even marshmallow fluff if you’re feeling crazy!

Yield: 4

Baked Sweet Potato Fries

Sweet potato fries on parchment paper with herbs on top.

Super crispy and perfectly seasoned Baked Sweet Potato Fries are only four ingredients away! You can even prep them ahead, making for an easy snack or side dish.

Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes


  • 3 large sweet potatoes
  • 1.5 tablespoons cornstarch
  • 2.5 tablespoons olive oil, divided
  • salt and fresh cracked pepper, to taste


Preheat oven to 425°F. Line a large cookie sheet with parchment paper or non-stick aluminum foil.

Peel sweet potatoes and slice into fries. You want fries to be as even in width as possible for even cooking.

Place sweet potatoes in one of those giant size ziplocks and drizzle in 2 tablespoons olive oil. Shake like crazy to evenly coat. Then sprinkle in the cornstarch and shake, shake, shake.

Drizzle in the last tablespoon of olive oil and shake until cornstarch disappears. Sprinkle in the salt and pepper and shake one last time!

Lay out the sweet potatoes in a single layer and bake 25-30 minutes, flipping half way through. Serve immediately.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 231Total Fat: 11gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 9gCholesterol: 0mgSodium: 196mgCarbohydrates: 33gFiber: 6gSugar: 9gProtein: 3g

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34 Responses
  1. Audrey Martin

    My granddaughter and I were looking at this recipe. We were not surprised cornstarch was used. She said Granny it has to be cornstarch or baking powder,. I told yes one or the other. When we saw recipe, we both laughed. Very well done with this recipe.

  2. Kristi

    Woah! These look amazing! I will definitely try the corn meal next time. I find it also helps if you cut them very thin. I usually dip mine in a chipotle “mayo,” that’s mostly fat-free, unsweetened yogurt, a touch of mayo (for the tang), and a bunch of chipotle powder, some salt, and some garlic. YUM!
    Soooo… most people on the interwebs are talking about having to blanch these in oil (yuck!) before freezing them… has anyone tried freezing them raw, or blanched in water?

  3. Andrea

    I tried this recipe tonight and the fries were just not crispy. They were still delicious but I just couldn’t get them crispy- and I made two different batches. 🙁 I’m not sure how but if you could somehow give any ideas/tips I would greatly appreciate it!

    1. Jessica

      Hmm I wonder if it’s too much olive oil?

      I don’t know why they wouldn’t have crisped up! Mine were by no means as crispy as when you fry them, but they were not soggy by any means.

      Sorry they didn’t turn out perfect, but I am glad they still tasted good!

  4. Taryn

    Yum! My mouth is watering!

    Do you know where you got the wire cup they’re in? I’ve been looking for something like that just for serving up fries in parchment like you do here. It makes them even more yummy, I think. Right? No? Just me?

    1. Jessica

      No! It totally makes it taste better! 😛

      I got it at Dillards! I was there 2 weeks ago and saw them in the clearance section for $2 so better go quick!

  5. Kita

    I haven’t tried baking sweet potatoes yet. I love this idea! We have only grilled sweet potato fries and I snuck them in with normal regular old fashioned potatoes in an attempt to get BF to try them. That failed, but I enjoyed them. 😀

  6. Kocinera

    Sweet potato fries are the greatest thing ever! I had just discovered the trick of coating them in cornstarch, but cornmeal sounds even better. Sometimes cornstarch can get a little gummy–especially when reheating. I bet the cornmeal gives the fries a beautiful crunch.

  7. Heather of Kitchen Concoctions

    Oh I love sweet potato fries (probably more than regular French Fries)! I recently made some spicy sweet potato fries but have never heard of this cornmeal trick. I can’t wait to try it next time I get a sweet fry craving.

  8. Russell van Kraayenburg

    Ok I had to check out the fries too. These pics are super yummy and the fries look gorgeous! I am now planning a meal around fries.

    These sweet potato fries look much better than mine the last time I tried them. I think I am going to use this recipe next.

  9. Lauren @ Adventures in Flip Flops

    Oh man, these are making my mouth water and I have no hope of making them for weeks. Le sigh. I’ll just live vicariously through you, then.

  10. Rachel @ Baked by Rachel

    Fries? Yes please 🙂 But I can honestly say I’ve never had a taste of sweet potato anything – unless we’re talking baby food but I can’t be sure of that since I don’t remember.

  11. DessertForTwo

    I would so date someone who smelled like french fries! 🙂

    I’ve been playing with sweet potato fry recipes so long, I’ve given up hope. But cornmeal just might be the trick to getting the elusive crispness! Thanks!

  12. Bev Weidner

    Seriously, and I’m serious. Those are my most favorite fries in the entire world and Earth. Seriously. LOVE THEM.

  13. Kim

    Hi Jessica, I was wondering if you have any tips for cutting those sweet potatoes evenly. I actually made sweet potato fries for the first time a week or two ago…I made “copycat” Bloomin’ Onion dipping sauce to dip the fries in and my husband and I are now addicted lol. My only problem is that they’re SO hard to cut and I’m terrified I’m going to slice my finger off, so any tips you have would be much appreciated!

  14. Lynne @ 365 Days of Baking

    How wonderful! We LOVE sweet potato fries – they’re almost as good as dessert!
    I’ll have to try the cornmeal, haven’t heard of that. And the cinnamon – yum!
    Thanks, Jessica!

  15. Lindsay @ The Lean Green Bean

    i make sweet potato fries all the time but never with the cornmeal crust. definitely gonna try that out!

  16. Jessica @ Sushi and Sit-Ups

    I love sweet potato fries! In high school I dated a guy who worked for Arby’s. Jamocha shakes are really tasty.

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I'm a trial & error, self taught, sugar addict who thankfully learned how to survive in the kitchen! I am also a wife, mama of 3.
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