Crispy Cajun Sweet Potato Fries

overhead photo of baked fries with wooden bowl of aioli beside them

These Crispy Cajun Sweet Potato Fries are the absolute best! Made with a homemade cajun spice blend, these are thin and perfectly baked until crispy. Dip in a spicy aioli and you’re set for a delicious snack!

This recipe was originally published in February 2018 – I’ve since updated the photos and slightly altered the recipe, enjoy! 

I don’t know about y’all….but I can eat french fries ANY TIME. 

They’re just the perfect snack or side dish. They’re crispy, salty and hello, they’re vegetables! Win win win! These Cajun Sweet Potato fries are no exception! Let me tell you why!

Why You’ll Love These Fries: 

They’re crispy, seasoned with a homemade cajun spice blend and they have the easiest dipping sauce ever that will make you swoon.

I met Ben (my husband) in college and learned the joy of baking your own sweet potatoes and turning them into fries. And said fries don’t turn out mushy OR too sweet. In fact, they’re crunchy and deliciously flavorful. Is there a person on this Earth who doesn’t like fries? If so, I feel so sorry for those poor souls.

close up of cajun seasoned sweet potato fries

Anyway, if you didn’t already know, sweet potatoes are SUPER good for you. Packed with nutrients, lots of beta carotene/vitamin A (good for healthy skin and eye health), vitamin C and dietary fiber!

And with this recipe, you get to dip them in the most amazing aioli. Which we all know is just a fancy term for mayonnaise, right? K, just checking. Aioli sounds cooler anyway 🙂

close up of the creamy spicy aioli in the wooden bowl surrounded by baked cajun sweet potato fries

It’s creamy and a little spicy and the perfect vehicle to slather these fries in. 

This is a pretty straightforward recipe. It takes just a few minutes to slice the potatoes up and then just 40-45 minutes to bake them! Easy peasy. So let’s get into what you need to make them! 

Ingredients You Need: 

Sweet Potatoes – of course! Be sure to use sweet potatoes that are the same size so that when you slice them, they will cook evenly!

Avocado Oil – You can also use olive oil if needed. 

Homemade Cajun Seasoning (garlic powder, salt, pepper, cayenne pepper, dried thyme paprika) – a MUST! This homemade seasoning is simple and so easy. 

Mayonnaise – my go-to is Duke’s mayo!

Lemon, hot sauce, garlic powder, salt and pepper – needed for the spicy aioli!

Making Sweet Potato Fries in 4 Simple Steps: 

  1. Preheat the oven to 400 degrees. Using a sharp knife, carefully slice the sweet potatoes into long thin fries. See photo here: sliced raw sweet potato fries in a metal bowl
  2. In a small bowl, mix together the spices for the cajun spice blend. Add the sliced fries to a large sheet pan. Add 2 tbsp of avocado oil and rub them with your hands to make sure each one is coated! Using a spoon, sprinkle the cajun seasoning on top of the fries to make sure they’re evenly coated and then use your hands to rub it all in! 
  3. Pop the fries in the oven and bake for 40 minutes, flipping them halfway! If desired, for additional crispiness at the end, place the oven on broil for 1-2 minutes. before and after side by side pics of sweet potato fries on the sheet pan
  4. Once the fries are done, quickly mix the ingredients for the spicy aioli together and you’re ready! Add more salt if desired on top of the fries and dig in!

Best Tips for Baking Sweet Potato Fries: 

When you are adding the sweet potato fries onto the sheet pan, be sure and spread them out/make sure they aren’t touching if possible. 

Like I said earlier, be sure to slice them all around the same width/length so that they cook evenly. 

Be sure to make sure that the oil and cajun spice blend really coat ALL of the fries evenly!

dipping a fry in the aioli

To ensure ultra crispiness, if you do place the oven on broil, watch it CLOSELY! You don’t want to accidentally burn the fries. I recommend not letting them broil for more than 2 minutes. In fact, I recommend setting a timer for 1 minute, ha! 

What to Serve Sweet Potato Fries With: 

Easy Black Bean Burgers – these would make the perfect vegetarian main dish for these sweet potato fries!

Gouda Apple Pork Burgers – these burgers are so rich! The fries would be the perfect pairing! 

Ground Chicken Tacos with Chipotle Crema – if you’re looking for a side dish for tacos, these would be perfect!

I hope you enjoy this super simple and delicious recipe! YUM! XO -Haylie 

Did you enjoy this recipe? Here are a few others you might like: 

Baked Garlic Herb Fries with Avocado Ranch 

Cheesy Enchilada Stuffed Sweet Potatoes

Crispy Loaded Smashed Potatoes 

Thank you so much for following along here, friends! Want to see more? Be sure to follow ourbalancedbowl on Instagram and tag me with your photo if you end up making a recipe! You can also post a photo of your recipe to the Our Balanced Bowl Facebook page! Like a recipe that you saw? Follow me on Pinterest here! I always love to see your re-creations! If you do make a recipe, it would make my whole day if you were to rate and comment so I can get your feedback! Lots of love! – Haylie

Crispy Cajun Sweet Potato Fries

A homemade cajun seasoning on crispy sweet potato fries!

Course Appetizer, Side, Side Dish
Cuisine American
Keyword baked sweet potato fries, cajun spice, crispy sweet potato fries, sweet potato fries
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings 2
Author Haylie


  • 2 large sweet potatoes, sliced into thin long fries
  • 2 tbsp avocado oil

Homemade Cajun Seasoning

  • 1 tsp salt
  • 1/2 tsp pepper
  • 1/2 tsp garlic powder
  • 1/2 tsp cayenne powder
  • 1/4 tsp dried thyme
  • 1/4 tsp paprika

Spicy Aioli Dipping Sauce

  • 3 tbsp mayonnaise
  • juice of 1/2 lemon
  • 1/2 tsp garlic powder
  • 1 tbsp hot sauce (i used texas pete)
  • 1/4 tsp salt
  • 1/4 tsp pepper


  1. Preheat oven to 400 degrees. Cut sweet potatoes into long, thin fries (see above photo for reference). Place them on a baking sheet.

  2. Mix all of the cajun spices listed above together in a small bowl to make your cajun seasoning.

  3. Drizzle 2 tbsp of avocado oil on the potatoes. Toss the sweet potatoes using your hands until they're fully coated with the oil.

  4. Using a spoon, slowly add the cajun spice onto the potatoes. Using your hands, toss the potatoes until the seasoning completely covers them.

  5. Bake for 40 minutes, flipping the fries halfway through (at the 20 minute mark)

  6. Once the 40 minutes is up, if desired for extra crispiness, broil the potatoes on hight for 1-2 minutes - keeping a close eye on them!

  7. Mix the mayo, spices, lemon and hot sauce together in a small bowl. Taste and adjust seasoning if needed (add more hot sauce if you want it spicier!)

  8. Serve the sweet potato fries hot and dip in lots of spicy aioli! 







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