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These Crispy Roasted Sweet Potatoes are an easy, healthy side dish that goes with about any meal! Roast in the oven or try them in the air fryer!

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Crispy roasted sweet potato cubes with seasonings on a sheet pan.

Have you ever made batch of roasted sweet potatoes and ended up with soft, mushy cubes? Yep, been there, done that. But the good news is, with this recipe, you won’t have to worry about sub-par sweet potatoes anymore! Instead, you’ll create sweet potatoes with a fluffy interior and a well-seasoned crisp exterior!!

So what makes these better than others you’ve tried? For starters, I’ve made SO many batches of these little babies to make sure they’re as crispy as possible. The secret is the combination of high heat, the perfect seasoning (with a secret ingredient to soak up moisture!) and even cooking! Let’s get cookin’….

Overhead view of the ingredients needed for roasting sweet potatoes, including seasonings, oil, and cubed potatoes.

Ingredients Needed for Crispy Roasted Sweet Potatoes

  • Raw sweet potatoes
  • Olive oil
  • Cornstarch
  • Salt, pepper & seasonings
Sweet potatoes being cut on a cutting board.

How to Cube Sweet Potatoes

  1. Peel the sweet potatoes
  2. Cut into slices (for this recipe, I cut into 1/2-inch slices)
  3. Cut each slice into cubes, keeping them as evenly-sized as possible for even cooking
Cubed sweet potatoes being mixed with oil and seasonings.

Roasting Sweet Potatoes

First, you’ll combine the olive oil, seasonings and cornstarch. Then, pour that over the cubed sweet potatoes and stir until well-coated.

Seasoned sweet potatoes spread out on a parchment-lined sheet pan.

Then, you’ll spread them out on a parchment-lined baking sheet and put into a hot oven. After baking 15 minutes, flip them with a spatula and continue to bake until golden brown and crispy!

Bowl of crispy sweet potatoes on a wooden cutting board and a gold fork.

How to make roasted sweet potatoes crispy

There are a few things that help make sweet potatoes crispy. Here are a few things that help!

  • Oven temperature. Make sure your oven is preheated before putting the pan in the oven. The super hot oven will help get a nice crisp exterior on your potatoes.
  • Small, even pieces. Try to cut the sweet potatoes into even cubes (I like to do about 1/2 inch). This will ensure that the whole pan cooks evenly. I don’t recommend doing large cubes as the outside will be done before the interior of the cubes are soft.
  • Give them space. If they’re too close to each other, the hot air can’t get to all sides of the cubes, so they won’t be as crispy.
  • Cornstarch! I tested this recipe with and without cornstarch (which helps soak up any extra moisture) and found that it does help make these more crisp.
  • The pan matters. Use a pan with low sides (or no sides) to get the best air movement around the potatoes. Also, put the potatoes right on the pan or use parchment for best results (silicone baking mats and foil don’t seem to work as well).
Overhead shot of a bowl of sweet potatoes with a striped linen and a gold fork.

Roasted Sweet Potatoes in the Air Fryer

This recipe would also work great in an air fryer! Once the sweet potato cubes are coated in the oil/seasoning mixture, place them in an even layer in the air fryer preheated to 425F. If they don’t all fit, you may have to work in batches.

Shake the basket (or flip the sweet potatoes) after about 5 minutes. Continue to let the sweet potatoes cook for 5-8 minutes, or until golden brown and crispy! Please do note that air fryers vary greatly – keep a close eye on them your first time to see how the timing goes! 🙂

Cubed sweet potatoes on a sheet pan.

Other Healthy Side Dishes to Try

You can find all of my side dishes here! Below I’ve pulled together a few of my more health-conscious side dishes for you to check out!

Roasted Baby Carrots

Air Fryer Brussels Sprouts

Homemade Applesauce

Mexican Street Corn Salad


Follow on PinterestInstagram and Facebook so you never miss a recipe!! And as always, thank you for following along with my blog, making my recipes, liking and sharing on social media and any other way you support Dance Around the Kitchen!  -Kelsey

Crispy roasted sweet potato cubes on a sheet pan.
4.72 from 7 votes

Crispy Roasted Sweet Potatoes

Author: Kelsey
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
These Crispy Roasted Sweet Potatoes are an easy, healthy side dish that goes with about any meal! Roast in the oven or try them in the air fryer!


  • Sheet Pan


  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/2 teaspoon smoked paprika
  • 1/4 teaspoon garlic powder
  • 1/4 teaspoon onion powder
  • 1 1/2 teaspoons cornstarch
  • 4 cups peeled & cubed sweet potatoes 1/2 inch cubes
  • 3 tablespoons olive oil


  • Preheat oven (or an air fryer) to 425°F.
  • In a small bowl, combine the salt, pepper, paprika, garlic, onion powder and cornstarch; set aside.
  • Add the cubed sweet potatoes to a large bowl and drizzle with olive oil and the seasoning.
  • Stir until the sweet potatoes are evenly coated.
  • Spread the sweet potatoes onto a large cookie sheet.
  • Bake for 15 minutes then flip them over with a spatula. Bake an additional 5-10 minutes or until the sweet potatoes are soft on the inside and golden and crisp on the exterior.


Calories: 214.78kcal | Carbohydrates: 28.02g | Protein: 2.2g | Fat: 10.8g | Saturated Fat: 1.5g | Polyunsaturated Fat: 1.15g | Monounsaturated Fat: 7.8g | Sodium: 654.91mg | Potassium: 454.32mg | Fiber: 4.1g | Sugar: 5.58g | Vitamin A: 18821.67IU | Vitamin C: 3.22mg | Calcium: 42.23mg | Iron: 0.92mg
“Dance Around the Kitchen” is not a dietitian or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories and other nutritional values can vary quite a bit depending on which brands were used.

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Recipe Rating


  1. Hello Kelsey,
    Just a question about using cornstarch for the potatoes, do u taste the cornstarch at all on the potatoes???

    1. Nope!!! You won’t notice the cornstarch – it just helps crisp up the potatoes! 🙂

  2. 5 stars
    Tried your Crispy Roasted Sweet Potatoes. They were very good and I will be making them again. A quick recipe. Also, I liked the ability to scale the recipe since we are a two person household. Thank you.

  3. Angela Mielke says:

    4 stars
    These were delicious, but not crispy. We used a sheet pan with low sides, parchment and had the oven at 425 (because that is what our other item cooked at). I think next time I will increase the cornstarch.

    1. Hello Angela, When I’m going for crispy, I always skip the parchment paper and roast directly on the pan. Makes for a bit more cleanup, but a better result. Priorities 🙂

  4. 5 stars
    These sweet potatoes turned out great! Will make again soon; thanks for the recipe.

  5. 5 stars
    Just prepped these for lunch/dinners for the week and they’re amazing! I’ve made roasted sweet potatoes more times than I can count but will only make them this way from now on. So good!

  6. 4 stars
    I was looking for a crispy sweet potato recipe and this fits the bill.
    Thank you for all your great recipes.
    Hope you and your family have a Happy New Year.

  7. is there an alternative to the cornstarch or can you leave that off?

    1. Hi Tammy – The cornstarch helps make the sweet potatoes a little more “crisp!” You can certainly leave out the cornstarch and they’ll taste the same (might not be quite as crispy!). ~Kelsey

      1. Try tapioca or arrowroot starch?

  8. 5 stars
    Love this recipe! I have made it several days in a row due to many requests/ high demand 🤣
    Thank you

  9. Love this recipe for roasted sweet potatoes. I always chop some onion to mix in with the sweet potatoes. The seasoning can’t be beat, perfection! This is my go to recipe.