The BEST Crispy Homemade Sweet Potato Fries Recipe (2024)

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By Melissa

on Jan 18, 2019, Updated Oct 28, 2022

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The BEST crispy Sweet Potato Fries are made with a secret ingredient and a perfect spice blend, then baked to crisp perfection.

The BEST Crispy Homemade Sweet Potato Fries Recipe (2)

I love sweet potatoes and I love fries. So why not mix the two? Sweet potato fries are one of my all-time favorite side dishes and I’ve spent a lot of years researching and figuring out how to make them crispy and perfect. I have made and eaten far too many sweet potato fries that were burnt on one end and soggy in the middle so I took it upon myself to figure out the tips and tricks to make the best sweet potato fries on the block.

There’s a lot that goes into making a great sweet potato fry, but I’m here to tell you that going through the steps is worth the effort because you end up with perfectly seasoned, perfectly cooked, deliciously crispy sweet potatoes that are better than any you’ve had (even at a restaurant – you don’t find a better fry than these!).

The BEST Crispy Homemade Sweet Potato Fries Recipe (3)

How do you make sweet potato fries crispy?

Here are a few tips:
1. Soak the potatoes prior to cooking to help remove extra starch
2. Cut them very evenly so that they can cook evenly
3. Use the secret ingredient (cornstarch!) in your seasoning mix to add additional crunch when cooked
4. Don’t add salt until after cooking (the salt draws out moisture and that won’t help them crisp)
5. Flip the fries once during cooking so that they can brown on two sides
6. Let the fries cool for just 5 minutes before eating.
I know that it looks like a long list, but it’s worth it to get the perfect sweet potato fry!

The BEST Crispy Homemade Sweet Potato Fries Recipe (4)

Tips and Tricks for Making Sweet Potato Fries

  • Don’t skip any of the steps. You’ll want evenly cut taters to soak, coat, flip, and rest before eating if you want perfect sweet potato fries.
  • Feel free to change up the seasonings to meet your liking! There are so many great options that you can add. Want a little heat? Try adding some chipotle chili powder to your seasoning and cornstarch mix.
  • These are perfect with some dipping sauce! I love to use equal parts ketchup, mayo, BBQ, hot sauce, and mustard for a great sweet potato fry dipping sauce.
  • You can add the sweet potato fries to a big zipper-topped bag and use the bag to toss the fries in the oil and cornstarch mix easier (do the oil first and then add the dry mix).

Can you freeze sweet potato fries?

I have not had great luck with freezing this recipe. They sure don’t freeze before baking and they only froze ok after baking but I couldn’t get them to crisp back up when it came time to reheat and serve them. I would not freeze this recipe. These sweet potato fries actually don’t store well at all. I’d suggest making as many as you are going to eat and not more so that you don’t have leftovers. They just aren’t very good reheated.

The BEST Crispy Homemade Sweet Potato Fries Recipe (5)

What do you serve sweet potato fries with?

  • The Ultimate Pulled Pork Sandwich
  • Peperoncini Beef Sandwiches
  • 5 Ingredient Slow Cooker Chicken Legs
  • Healthy Homemade Frozen Chicken Nuggets from America’s Test Kitchen
  • The BEST Baked Chicken Breast

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The BEST Crispy Homemade Sweet Potato Fries Recipe (6)

The BEST Crispy Homemade Sweet Potato Fries

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  • Author: Melissa Griffiths – Bless this Mess
  • Total Time: 1 hour 10 minutes
  • Yield: Serves 4
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Description

The BEST crispy homemade Sweet Potato Fries are made with a secret ingredient and a perfect spice blend, then baked to crisp perfection.

Ingredients

Scale

  • 1 poundsweet potatoes,peeled
  • 2tablespoons neutral oil (olive, vegetable, canola, etc. all work)
  • 2 tablespoons cornstarch
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon smoked paprika
  • table salt, to taste

Instructions

  1. Cut your sweet potatoes into 1/4 inch square fry-shaped pieces. Consistency in the thickness of the potato is key for evenly and properly cooked potatoes.
  2. Place the cut sweet potatoes in a bowl and cover with cold water. Let soak for at least 30 minutes or up to 12 hours (they can soak overnight without issue).
  3. After the sweet potatoes soak, remove from the water and pat dry with a clean dish towel or paper towels.
  4. Add the dry sweet potatoes to a large bowl or zipper-top bag and drizzle with the oil. Toss well to coat evenly.
  5. In a small bowl, combine the cornstarch, garlic powder, and smoked paprika. Sprinkle over the oiled sweet potatoes and toss again to evenly coat.
  6. Preheat the oven to 425 degrees F.
  7. Spread the sweet potatoes in an even layer on a parchment-lined baking sheet.
  8. Bake in the preheated oven for 15 minutes.
  9. Remove from the oven and use a spatula to flip every fry over, one by one.
  10. Return the oven and bake for an additional 10 to 15 minutes.
  11. Remove from the oven and sprinkle with salt.
  12. Let the fries rest for 5 minutes before serving warm.

Notes

  • Don’t skip any of the steps. You’ll want evenly cut taters, to soak, coat, flip, and rest before eating if you want perfect sweet potato fries.
  • Feel free to change up the seasonings to meet your liking! There are so many great options that you can add. Want a little heat? Try adding some chipotle chili powder to your seasoning and corn starch mix.
  • These are perfect with some dipping sauce! I love to use equal parts ketchup, mayo, BBQ, hot sauce, and mustard for a great sweet potato fry dipping sauce.
  • I’m 90% sure that arrow root powder would work in place of the cornstarch just FYI.
  • Prep Time: 40 min
  • Cook Time: 30 min
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

This sweet potato fry recipe is inspired and heavily influenced by America’s Test Kitchen and Gimme Some Oven.

The BEST Crispy Homemade Sweet Potato Fries Recipe (7)

I can’t wait for you to make these sweet potato fries a regular part of your meals because they are so very good. Don’t forget that dipping sauce – it’s a game changer.

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The BEST Crispy Homemade Sweet Potato Fries Recipe (2024)

FAQs

Why won t my sweet potato fries get crispy? ›

The secret to crispy (instead of soggy) sweet potato fries is to spread them out in an even layer with enough room so that they don't touch. This is especially important if you're making a big batch of fries. Instead of just piling more onto one baking pan, spread them out over two baking pans or cook them in batches.

What makes sweet potato fries better? ›

Sweet potato fries are slightly higher in calories and carbs but also more nutrient dense than French fries. The greatest nutrient difference is that French fries have no vitamin A, while sweet potato fries are high in this nutrient. Vitamin A is important for your vision and immune system ( 2 ).

Why soak sweet potatoes before air frying? ›

If you'd like, you can soak the sweet potato slices for 30 minutes up to 2 hours before frying to remove excess starch. Personally, though, going through this step didn't make a real difference for my fries. Peels on or off — it's up to you!

What to use instead of cornstarch for sweet potato fries? ›

6 Cornstarch Substitutes for All Your Cooking and Baking Needs
  1. Potato Starch. Potato starch is the cornstarch substitute favorite of associate food editor Kendra Vaculin. ...
  2. Rice Flour. ...
  3. All-Purpose Flour. ...
  4. Tapioca Flour. ...
  5. Arrowroot Powder. ...
  6. Xanthan Gum.
Jun 13, 2022

How to make sweet potato fries crispy but not burnt? ›

Arrange your fries in a single layer and don't overcrowd; otherwise they will never crisp up. Bake for 20 minutes, then flip the fries so they can cook on all sides. (The easiest way to flip them is with a metal spatula. Section by section, scoop up about ten fries and flip them with a quick turn of the wrist.)

How do restaurants get sweet potato fries crispy? ›

TIPS & TRICKS to Make this Recipe: The main secrets to achieving that incredible crispy texture, is to soak the cut sweet potatoes in cold water for at least 30 minutes. This helps remove the starch from the sweet potatoes so they´re not limp & soggy. The other secret is the corn starch.

What is the secret to good fries? ›

The Double-Fry Method

When it comes to the actual cooking, you want to fry the french fries twice. The first round is at a lower temperature to cook the inside of the potato and the second time you'll use a higher temperature to make the fries golden brown and crispy.

Why do my sweet potato fries turn out soggy in air fryer? ›

Banish Soggy Sweet Potato Fries.

If your air fryer fries are soggy, it is likely because you over-crowded them in the basket.

What happens if you don't soak potatoes before air frying? ›

While it may seem like a pain, soaking the potatoes in hot water for 10 minutes prior to cooking them in the air fryer is essential. The water removes excess starch, allowing the fries to be their crispiest. Instead of soaking them in large bowl of cold water, I like to use hot water to cook the potatoes slightly.

Why do sweet potatoes turn black in air fryer? ›

Why do my air fryer sweet potato fries turn black? Sweet potatoes contain a higher concentration of sugar than standard potatoes, and caramelize as they cook in the air fryer. If you find the fries are darkening too quickly or deeply, cook at a lower temperature, or for a shorter period of time.

Which is crispier cornstarch or potato starch? ›

In test after test, potato starch produced the crunchiest, most cohesive coating—even when compared to cornstarch. Cornstarch samples were slightly more brittle and delicate. Not only was the potato starch coating crispier, but the crispy coating remained crispy up to 2 hours longer at room temperature.

Should you peel sweet potatoes for fries? ›

You can peel the sweet potatoes if you like, but I prefer to leave the skin on. It's packed with fiber, and I think it makes the fries crispier! Cut each potato lengthwise into 1/4- to 1/2-inch planks.

Why are my sweet potato fries still soft? ›

Don't overcrowd the baking sheet!

If the baking sheet it too crowded, the sweet potatoes will not crisp. You should provide optimal space for air to flow through, and the sweet potatoes shouldn't be touching.

Why is it hard to get sweet potatoes crispy? ›

A standard sweet potato has a lot of moisture, and its structure makes it behave less like a starchy potato, and more like a vegetable like squash or rutabaga. To make a sweet potato crispy, you have to choose the right sweet potato.

Why are sweet potatoes hard to crisp? ›

Soak them. I was always a little skeptical when I read this in recipes, but it's essential. Soaking the sweet potatoes removes excess starch, which allows them to crisp up easier. You will want to put them in cold water for at least 30 minutes, but the longer you can go, the better.

Why are my roasted sweet potatoes not crispy? ›

I've found that sweet potatoes really need space for a truly roasted, crisped-edge result. Aim for about one inch of space between pieces. This leads to good, dry, hot airflow that will let the potato pieces' moisture evaporate while letting them dry and crisp up more.

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