Sweet potato fries are high up on the list of the best side dish there is. They are simple to make, you can season them with anything and you can get them perfectly crispy without frying (by following our tips). These Baked Sweet Potato Fries are a must for your next burger or pizza night.

These sweet potatoes fries will change your life. If sweet potato fries are a big part of your life that is. They are crispy on the outside, fluffy on the inside, and haven't been anywhere near a fryer.
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What you will need
- Sweet potatoes - Make sure to follow the tips below for soaking and drying the potatoes
- Oil - We used a good quality olive oil, but vegetable oil or sunflower oil will work too.
- Cornstarch - Also known as corn flour. This is the secret ingredient to getting crispy fries.
- Seasoning - We went with garlic, parsley, sea salt and black pepper
Step by Step
One: Cut the sweet potatoes into fries about 1.5cm thick.
Two: Soak the fries in a bowl of water for 10 minutes. Dry with a towel.
Three: Place the soaked and dried potatoes in a large bowl and add the oil, cornstarch, garlic and parsley and mix well.
Four: Place them on to a baking tray and spread out so there is enough space between the fries. Put them in a preheated oven at 200°C/400°F/Gas 6 for 15 minutes. Flip the fries and then cook for a further 20 minutes, or until crispy.
Why should you try it?
- Great alternative to potato fries
- Vegan
- Easy to adapt with different seasoning
- Crispy, without being fried
Health benefits of sweet potato
Whilst there is nothing wrong with white potatoes, we love them, sweet potatoes make a nice change to regular fries and they have lots of nutritional benefits. Not only a good source of fibre, but packed with B vitamins and vitamin C too. They are also high in beta-carotene.
Baked, not fried
Whenever I post about sweet potato fries, someone tells me that they have tried to bake them but they never work and they always end up falling apart, so I thought I would share my method for making them.
You are never going to get them crispy like they are when deep fried, unless you burn them in the oven, but you can still make them crispy and super delicious in the oven by following our steps.
Seasoning
We could eat fries every day of the week, but having them the same way would get boring. An easy way to change them up each time is to use a different seasoning.
This recipe uses garlic granules, dried parsley and some salt and pepper. But you really could use anything you like. A Cajun or Mexican blend seasoning would work well, or just some chilli powder.
FAQs
You can use this exact recipe to make air fryer sweet potato fries too and they will get just as crisp. You can even use a little less oil if you like, as that's one of the great things about an air fryer.
Nobody wants a soggy floppy sweet potato fry - it's all about the crispiness. When you get them in a restaurant, they are always perfectly crispy, but usually fried. We wanted to keep them baked, but still with some crispiness.
The key to getting them crispy in the oven is rinsing them in cold water to get off any extra starch and then making sure they are dried of any water, so they crisp rather than steam. Cornstarch is also essential to a crispy baked fry, and you can mix it with the other seasonings before coating.
It's also important to make sure that you don't put too many fries in one pan and overcrowd them. They like their space, so use two pans if needed. Also, cook them at a high temperature. Following these simple steps will help you get that crispy baked fry that you want.
Extra tips
- To get crispy fries, soak them in water first and make sure they are dried well.
- Mix cornstarch with your seasoning for extra crispy fries.
- It's important to make sure you don't put too many fries in one pan, so space them out.
- Get creative with the seasoning. A Cajun or Mexican blend seasoning would work well.
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Recipe
Baked Sweet Potato Fries
Ingredients
- 400 g sweet potato
- 2 tablespoon olive oil
- 1 pinch sea salt and black pepper
- 2 tablespoon cornstarch/corn flour
- 1 tablespoon dried parsley
- 1 tablespoon garlic granules
Instructions
- Cut the sweet potatoes into fries about 15mm thick.
- Soak the fries in a bowl of water for 10 minutes. Dry with a towel.
- Place the soaked and dried potatoes in a large bowl and add the oil, cornstarch, garlic and parsley and mix well.
- Place them on to a baking tray and spread out so there is enough space between the fries.
- Put them in a preheated oven at 200C/400F/Gas 6 for 15 minutes. Flip the fries and then cook for a further 20 minutes, or until crispy. Sprinkle with salt and pepper before serving.
Notes
- To get crispy fries, soak them in water first and make sure they are dried well.
- Mix cornstarch with your seasoning for extra crispy fries.
- It's important to make sure you don't put too many fries in one pan, so space them out.
- Get creative with the seasoning. A Cajun or Mexican blend seasoning would work well.
Julie
Will these work in an airfryer?
Dannii
Yes, they will work in an air fryer and you might not need to use as much oil either.
Kay
You mention garlic, but it is not listed in the ingredients. How much garlic?
Dannii
At the top of the post it says 1tbsp garlic granules. I will add it to the recipe card too. I hope you enjoy.
Gloria @ Homemade & Yummy
These fries look amazing, love the fact they are not deep fried. Great use of sweet potato.
Dannii
Thanks! I much prefer them baked, especially when you can still get them crispy.
Dannii
I think that is why they don't turn out right for most people.
Sally Akins
I love sweet potato fries but I've never been able to make them successfully at home, will definitely have to give your method a go!
Dannii
Not cooking too many at once is key.
Natasha Mairs
I have always wanted to make some of these but still haven't got round too it.
Dannii
This recipe is fool-proof!
Carole
Anything but foolproof. I won't be using it again.
Dannii
Sorry you didn't enjoy them. If you can give a few more details about what went wrong, then we can try to help you. We have tested this recipe many many times and never had an issue.
marcie
Sweet potato fries are some of my favorite things, and I choose them over regular fries all the time! These look just perfect. :)
Dannii
They have to be crispy though :)
Kelly
These look perfect, Dannii! I feel the same way, I can never resist a plate if they are on the menu! Baking them at home is so much healthier though! Yay, congrats on the Weight Watchers collaboration too :)
Dannii
Thanks Kelly! I have lots of exciting recipes coming your way!
Jessica
Another simple yet amazing snacks! Potatoes are my bestfriends: salty, sweet, cheesy and whatever. Haha
Dannii
Cheesy potatoes are one of my favourite comfort foods.
Zoë IKIWN
I love sweet potato fries, it's not something I've ever managed to make successfully at home for some reason so I'll definitely be giving this recipe a go. xx
Dannii
Definitely give this a try!
Petra / Be Healthy Now
My boyfriend loves sweet potato fries, will have to try your healthier version and see how that turns out! Normally when I bake slices of sweet potato in the oven, they always turn out soft.
Dannii
They key is to not cook too many at one time, as they won't get crispy.
Idaintyit
I love sweet potato fries but they always go soft and break when I take them out, now I know why! Thanks for the tip
Dannii
You are very welcome!
Kari @ bite-sized thoughts
Yum, you have me craving sweet potato fries now!
Dannii
I might make them again tonight!
Anna @AnnaTheApple
Well done on your amazing weight loss! That's fantastic!
The sweet potato fries look awesome. I'm such a sucker for them - I'll always order them at a restaurant (or swap normal fries for them). Restaurant ones are probably not that much healthier than regular but they taste 100 times better. Love this healthy version though.
Dannii
I notice the sweet potatoes in all your rib photos ;)
Georgia
Congrats on the weight loss!! And I will be trying out this recipe, I prefer baked than fried food anyway!
Dannii
Thank you :) Yes, I always feel like crap after fried food.
lyn
had to try these as they look soon good& they are so thank you danni love love your book !!!
Dannii
Yay - I am glad you enjoyed them and I am happy that you are enjoying the book too!
Fashion and Style Police
Congrats on your weight loss. This dish looks so yummy.
Dannii
Thanks so much! I am feeling really good at the moment.
Elizabeth
Mmm I love sweet potato fries. Congratulations on the weight loss! I too am on a slimming plan - I've lost 11 lbs since the New Year through calorie counting (choosing sensible options to feel full) and exercise. On a mission! :)
Dannii
We can do it :D
Tandy I Lavender and Lime
I grow my own sweet potatoes so I shall keep this in mind for when I harvest them
Dannii
I would love to grow my own, I just don't think we have the room.