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Baked Sweet Potato Fries with Avocado Dipping Sauce

These Baked Sweet Potato Fries are crispy on the outside, tender on the outside, and dipped in a creamy, herby avocado sauce.

Baked sweet potato fries on marble background

It’s Friday! And who ever decided Fridays should be pizza days? Fridays should be fry days! Like, deluxe, could-be-considered-a-meal fries. And okay, maybe these simple sweet potato fries can’t quite be considered a meal in themselves. But did that stop me? No. Hard no.

Baked sweet potato fries on marble background

*Segues to blurb about my life at the moment* 

You know why I can warrant eating fries for dinner? Because I’m moving to Europe tomorrow. LITERALLY TOMORROW. Which means there is nothing left in my apartment to eat. And as I write this, a few days after cooking up these fries, I actually have nothing left but my 3 packed-to-the-brim suitcases.

My pots and pans have found homes at a thrift store. My car, Daisy, has found a sassy new owner. My kombucha SCOBY continues her brewing in another kitchen’s cupboard. The cat food I throw down from my balcony to my alley cats, Black Lightening and Simba, has found its way into the hands of another crazy cat lady. My house is empty, my heart is full, and adventure awaits.

Baked Sweet Potato Fries with Avocado Dipping Sauce

I digress…sweet potato fries. Baked sweet potato fries, to be exact! You can make crispy sweet potato fries in the oven with a quick coating of cornstarch (no deep fryer needed here)!

Baked Sweet Potato Fries with Avocado Dipping Sauce
Baked Sweet Potato Fries with Avocado Dipping Sauce

No meal-worthy French fry is complete without a killer sauce, so we’re serving these sweet potato fries with an herby avocado dipping sauce.

Baked Sweet Potato Fries with Avocado Dipping Sauce

More unconventional veggie fries!

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Almond Crusted Asparagus Fries
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Sweet Potato Wedges

Baked Sweet Potato Fries with Avocado Dipping Sauce
Baked Sweet Potato Fries with Avocado Dipping Sauce

Baked Sweet Potato Fries with Avocado Dipping Sauce

These Baked Sweet Potato Fries are crispy on the outside, tender on the outside, and dipped in a creamy, herby avocado sauce.
Print Pin Rate
Course: Appetizers, Side Dishes, Snacks
Cuisine: American
Keyword: baked sweet potato fries, sweet potato fries
Diet: Dairy-Free, Gluten-Free, Vegan, Vegetarian
Occasion: 4th of July, Birthdays, Game Day, Halloween
Time: 60 minutes or more
Prep: 1 hr 20 mins
Cook: 35 mins
Total: 1 hr 55 mins
Servings: 3 people
Calories: 381kcal
Author: Sarah Bond
5 from 1 vote


  • 2 large sweet potatoes
  • cold water
  • 1-2 Tbsp cornstarch
  • 2-3 Tbsp oil* 15 to 30 mL
  • Pinch of salt
  • ½ avocado
  • Juice of ½ lime
  • 1 clove garlic
  • 1 Tbsp chopped fresh parsley
  • 1 jalapeno deseeded
  • ½ cup plain nonfat Greek yogurt 90 g, or vegan alternative
  • A dash of milk to achieve your desired texture
  • Salt and pepper to taste



  • Peel sweet potatoes and cut lengthwise into ¼ inch (0.6 cm) thick matchsticks (erring on the side thinner fries if your knife skills are atrocious like mine and you can’t seem to make them all the exact same size).
  • Place matchsticks into a bowl of ice cold water and set in fridge for a few hours (anywhere from 1 hour to overnight)**. Remove matchsticks and pat dry. No worries if these aren’t 100% dry.
  • Add 1 Tbsp of cornstarch to a plastic bag and toss in the sweet potatoes. Blow some air into the bag and shake shake shake. Potatoes should be lightly, evenly coated in cornstarch (add more cornstarch as necessary).
  • Lay potatoes on a parchment paper-lined baking sheet and drizzle with oil. Toss the potatoes around to evenly coat each with oil, then arrange fries so that none are touching and each has plenty of room to breathe and let out moisture (you may need to use 2 pans).
  • Bake fries at 425 degrees F (232 C) for 20 minutes. Remove, flip the fries, rotate the pan, and cook for another 20 minutes, or until fries have begun to brown.
  • Turn off oven and slightly prop open the door. Allow fries to crisp for 15 more minutes.
  • Remove from oven and sprinkle with salt. Serve hot with avocado dipping sauce!


  • (Make this while the taters cook!) In a food processor, mix avocado, lime juice, garlic, parsley, and jalapeno until smooth.
  • Add Greek yogurt and continue to mix until smooth.
  • If desired, add a dash of milk to thin the sauce to a texture of your liking.
  • Add a pinch of salt and pepper to suit your taste.


*Use a low smoke point oil, like grapeseed, canola, or peanut. With this high temperature and long cooking time, olive oil will become smoky.
**This step is important in drawing out excess starches! It helps to give your fries that crispy on the outside, tender on the inside texture.


Serving: 1serving | Calories: 381kcal | Carbohydrates: 44g | Protein: 6.5g | Fat: 20g | Sodium: 222mg | Fiber: 7.6g
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Comments (47)

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  1. Tara | Deliciously Declassified says:

    LOVE sweet potato fries and so do the kiddos. I’ve never soaked them in water before baking – I will definitely try this next time!

    1. Sarah says:

      Yes try it out! Let me know how it works for ya! 🙂

  2. Bree Hogan says:

    Sweet potato fries are the best, I make them all the time and they never last for very long! I’ve not tried the soak-in-water-before-bake method before so I shall give that a try. And the avocado dipping sauce…yum!

    1. Sarah says:

      These lasted all of about 20 minutes! Let me know how it goes, Bree!

  3. Helen @ says:

    Good luck on your adventure! That dipping sauce looks delicious 🙂

    1. Sarah says:

      Thanks so much Helen! 🙂

  4. Lisa @ says:

    OMG – just step aside, because I’m going to have to devour those! Love the dipping sauce, too!

    1. Sarah says:

      Hahah exactly my reaction when I pulled em out of the oven!

  5. Hilary @ For the Love of Basil says:

    These seriously look devine!

  6. LAURA says:

    This look amazing! Definitely have to try!

  7. Sherri @ Watch Learn Eat says:

    Love these fries and the dip sounds amazing! A great combination of flavors! 🙂

  8. Marlynn @ UrbanBlissLife says:

    These look perfect! We always soak potatoes and sweet potatoes in water to remove the starchiness before baking or frying and I love that you included that step in here. The avocado dipping sauce is a genius idea and sounds like a wonderful pairing with sweet potato fries. Can’t wait to make these!

    1. Sarah says:

      Yes that step helped so much! Anything to avoid soggy fries. Thanks so much for dropping in Marlynn and let me know how it goes 🙂

  9. Kat Ryan says:

    Congrats on your move!!!!! How exciting is that? Kinda jelly over here, not going to lie. These fries look amazing! Can’t wait to try. Thanks for posting

    1. Sarah says:

      Hahah thanks Kat!! I just arrived over here and believe me there are pleeeeenty of pictures to come! Thanks so much for stopping by 🙂

  10. Allison says:

    Yum! Sweet potato fries are my favorite! Definitely making these.

  11. Rachel @ My Urban Oven says:

    These look so yummy! As well as the photos being fantastic! Good luck on your move. I can’t wait to read about your adventures in Europe. I wish I had the guts to give away everything and make a big move like that. Cheers to you!

    1. Sarah says:

      Aw thanks so much Rachel! Posts and pictures all about this wild adventure to come just as soon as I shake off this jet lag 😉

  12. January says:

    alright I’m a sucker for fries so I’m very excited to try this healthier option with the to die for looking avocado sauce!

    1. Sarah says:

      Yes you have to try them!! Vitamin A bombs + lower in fat + they’re still as addictive as regular fries = EAT ALL THE FRIES!

  13. Nicoleta Dragoi says:

    Oh my God, this looks so delicious!! I love fried potatoes but I never tried them with avocado sauce! I definitely need to try it out!!

  14. Christina says:

    The dip is so unique! I will have to try these ASAP

  15. Tara says:

    First, congratulations on your big adventure. I can feel your excitement. I am excited to try your method – my sweet potato fries are always soggy, plus that dressing sounds diving.

    1. Sarah says:

      Thanks so much Tara! Yea I was DETERMINED to make these anything but soggy. And with the cold water + cornstarch it was a success!

  16. Lauren says:

    That avocado sauce looks amazing!! (so do the fries!)

  17. brita says:

    These fries AND avocado sauce. I need these now!! I’ve tried making sweet potato fries a couple times and they never quite come out how I want them to. I’l definitely give your recipe a try!

  18. Sherisse says:

    I’m not a huge fan of avocado, but this looks so good!

  19. Sarah says:

    …soooo this looks absolutely amazing! I can’t get enough sweet potatoes, I live on avocados, what a perfect recipe! Can’t wait to try! And eat!

  20. Ashleigh says:

    This is such a wonderful recipe, thank you for sharing! I can’t wait to try it!! I love all sweet potatoes!

  21. KatyRose says:

    Sweet potatoes and avocados are two of my favorite foods at the moment! I imagine this would be so delicious, looks spectacular too. – Katy

  22. Revathi Palani says:

    I love sweet potato fries over the regular ones. This looks like there have been fried and not baked. Just perfect and Amazing 😉

  23. I have not had any luck making these before, but I’ve never soaked them in cold water. I’ll have to try that step. That dipping sauce sounds amazing!

    1. Sarah says:

      Yea they can be a bit tricky! I’d say biggest things besides the cold water + cornstarch would be to not over-oil them and to give them plenty of room to breathe while they’re baking. Give it a go and let me know how they turn out! 🙂

  24. Emme says:

    I never would have thought to put the two together but it sounds like something I could eat a whole plate of! Lovely photography steps. I can’t wait to try it!

  25. Germaine says:

    Great combination…love it! Glad to learn how to make roasted sweet potato fried too….thanks

  26. I love sweet potato fries, great idea to pair the with an avocado dipping sauce, it sounds like a delicious combination!

  27. Diane says:

    What a cliff hanger! I am now so curious about your new adventure I’ll be back to find out what your up to! Sounds so fun, starting a new adventure is heroic! Good for you! Now, fill us in! And by the way, We love sweet potato fries! yours look really yummy!

    1. Sarah says:

      Haha thanks so much Diane! Pleeeeenty of photos to come just as soon as I shake off this jet lag! 🙂

  28. Claire says:

    These look SO good and the pictures are gorgeous!

  29. Christine | Vermilion Roots says:

    I’m excited to follow your food adventures in Europe! Continue sharing fantastic recipes like this. 🙂

    1. Sarah says:

      Aw thanks so much Christine! 🙂

  30. Kathryn @ FoodieGirlChicago says:

    Sweet potatoes fries make such a great snack or side. I love the unique dipping sauce with these!

  31. Willow says:

    This dip sounds like a perfect match to the sweet potato fries! I am a big fan of sweet potato fries! And polenta fries, and tofu fries, and zucchini fries, and…

  32. Amy says:

    I love sweet potato fries! One of my favorite restaurants serves them with a tarragon sauce that I want to bathe in!! I might have to play around and see if I can copy it.

    1. Sarah says:

      I haven’t experimented much with tarragon but it sounds heavenly! Good luck with your sweet potato experimentation! 🙂

  33. Yuki says:

    My country doesnt have jalapeno, what else can i use? im from asian tropical country5 stars

    1. Sarah says:

      Hi Yuki! You can use any pepper that’s available, adjusting the amount depending on how hot the pepper is. Perhaps 1 or 2 bird’s eye chilis?