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Crispy Baked Sweet Potato Slices with Spicy Lime Dipping Sauce

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Crispy baked sweet potato slices make a delicious and easy party snack or dinner side dish. Warning: These crispy baked fries are highly addictive; double the recipe for the best results!
platter with crispy sweet potato wedges next to cup of spicy lime dipping sauce with spoon


This post should really be titled “How I Ate Two Large Sweet Potatoes All By Myself in Less Than 24 Hours.” I planned to make these baked sweet potato slices for dinner one night, but at the last minute, I decided to hold one back and make it the following afternoon. Which was a great idea since I probably would have eaten them all anyway.

I am sure, like every other food blogger on the planet, I could whine endlessly about the lack of natural lighting during winter. Or I could gripe over the utterly awful lighting in my kitchen (yellow walls, yellow light fixture… ugh…). Then there is the super expense of buying actual fancy lights to use. Plus, I’m lazy, so I probably wouldn’t use them anyway.

And because really, baked sweet potato slices are never ever good reheated on the second day.


close up of crispy baked sweet potato wedges on platter with dipping sauce behind


And so, as it happens, I ate an entire super huge sweet potato all by myself for dinner. Then I had another one for lunch the next day. The crispy sweet potato slices are amazing – I couldn’t stop eating them!

In fact, I want another one right now. They are super easy to make.

How to make baked sweet potato slices

The original recipe states that the potato wedges should soak in cold water for about 8 hours before you bake them. Due to the fact that I never ever read a recipe before I start cooking it, that didn’t happen. Nope.

The second time, I did soak them for 8 hours, and I must say that they were only ever so slightly crunchier than the first time. Like, barely. So I think you’ll be fine if you want to skip soaking the sweet potatoes!

*TIP: Do try to cut the slices into roughly the same size so they bake evenly. 

  • Peel and chop the sweet potatoes into wedge shapes.
  • Soak the potato wedges in cold water for as long as you can give them (at least 10 minutes, and up to 8 hours).
  • Preheat the oven to 425F.
  • Line a cookie sheet with foil or spray it with cooking spray.
  • Remove the potato wedges from the water and place in a baggie with cornstarch and shake to coat. Do not try to add too many sweet potatoes at the same time or you will make a goopy mess.
  • Place the wedges on the cookie sheet and repeat until all the wedges have been coated.
  • Drizzle some olive oil on top and gently toss to coat.
  • Spread into an even layer and bake for 15 minutes.
  • Turn the wedges over and bake an additional 5 minutes.
  • Enjoy!

Do you need to peel sweet potatoes?

You don’t need to peel the sweet potatoes for this recipe, but I would recommend that you do it. The skin is tougher in this recipe, and so unless you rather enjoy eating the peel, I would remove it before baking.


How to make spicy lime dipping sauce:

This spicy lime dipping sauce is the perfect compliment to the crispy baked sweet potatoes! 

This dipping sauce works well with either sour cream, plain greek yogurt, or mayo! I have tried it with all of them and liked it every way. 

Which ever base you choose, mix in the zest and juice of 1 lime and some sriracha. 


Perfectly crispy homemade sweet potato fries held with dip

Other delicious sweet potato recipes


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platter with crispy sweet potato wedges next to cup of spicy lime dipping sauce with spoon

Crispy Baked Sweet Potato Slices Recipe with Spicy Lime Dipping Sauce

Yield: 4 servings
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes

Crispy sweet potato wedges make a delicious, easy party snack or side dish. These crispy baked sweet potatoes are highly addictive, so double the recipe!


Crispy Sweet Potato Wedges

  • 2-3 large sweet potatoes
  • 1/4 cup corn starch
  • 3-4 Tablespoon olive oil

Spicy Lime Dipping Sauce

  • 1/4 cup mayo, plain greek yogurt or sour cream
  • 1-2 teaspoon sriracha sauce (depending on how spicy you like things)
  • 1 teaspoon lime juice
  • 1 teaspoon lime zest


Sweet Potato Fries

  1. Peel the potatoes and cut them into medium sized wedges.
  2. Place the potatoes in a container and fill with water; allow to soak for 10 minutes-8 hours.
  3. Preheat your oven to 425F.
  4. Line a large cooking sheet with foil or spray with cooking spray.
  5. Remove the potato wedges from the container and shake off any additional water.
  6. Place a small handful of the potato wedges in a plastic baggie along with a spoonful of cornstarch (If you try to do too many potatoes/cornstarch at one time, everything becomes a goopy mess).
  7. Shake the baggie to coat the wedges in the cornstarch.
  8. Place the potato wedges on the cookie sheet and repeat with remaining wedges.
  9. Drizzle a bit of the olive oil on the wedges and toss to coat.
  10. Spread the wedges out in a single layer (don’t crowd them) and bake for 15 minutes.
  11. Turn the wedges over and bake an additional 5 minutes.
  12. Remove and enjoy!

Spicy Lime Dipping Sauce

  1. To make the dipping sauce combine the mayo/sour cream/yogurt, the sriracha, and the lime juice and zest in a bowl.
  2. Refrigerate until ready to serve.
Nutrition Information:
Yield: 6 Serving Size: 1
Amount Per Serving: Calories: 402Total Fat: 34gSaturated Fat: 5gTrans Fat: 0gUnsaturated Fat: 28gCholesterol: 6mgSodium: 137mgCarbohydrates: 20gFiber: 2gSugar: 6gProtein: 4g

Did you make this recipe?

Please leave a comment on the blog or share a photo on Instagram, and don't forget to tag #gingeredwhisk.


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Erica Schwarz

Friday 20th of December 2019

I've never been able to get sweet fries crispy in the oven but I've heard to use cornstarch! Going to make this, thanks for sharing.


Friday 20th of December 2019

Yum! Thank you for introducing me to my new addiction! Perfect for snacks or parties!


Sunday 3rd of February 2013

Sweet potato fries with SRIRACHA - lime dipping sauce? Sign me up! I have such a weakness for sweet potato 'anything' and sriracha! Brilliant, Jenni! It looks so good, I want it for breakfast!


Saturday 2nd of February 2013

Agh, I'm craving these now. They look and sound delicious.


Wednesday 30th of January 2013

I've been a unconscious participant in the "She Who Dies With The Most Cookbooks Wins" game for a while it seems, lol ;) Love sweet potato fries - I could happily eat them breakfast, lunch AND dinner!

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