These crispy and tender air fryer sweet potato cubes cook in 10 to 12 minutes at 400°F. Tossed with garlic, paprika, salt, and pepper, they're a healthy and tasty side for any meal or a delicious addition to salads and bowls.
Crispy Air Fryer Sweet Potato Cubes At A Glance
- ✅ Recipe Name: Air Fryer Sweet Potato Cubes (Crispy in 12 Minutes!)
- 🕒 Ready In: ~17 minutes (5 min prep, 10 to 12 min cook)
- 👪 Serves: 4
- 🍽 Calories: ~130 per serving
- 🥣 Main Ingredients: Sweet potatoes, olive oil, garlic powder, paprika, salt, pepper
- 📖 Dietary Info: Gluten-free, dairy-free, vegan, nut-free
- ⭐ Why You'll Love It: Sweet potato cubes give you more crispy edges per bite than wedges, and one tablespoon of oil is all it takes. Leftovers go straight into salads, grain bowls, and meal prep.
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These extra crispy air fryer sweet potato cubes are golden on the outside, soft on the inside, and packed with flavor from paprika, garlic, salt, and pepper. They cook in 10 to 12 minutes, which is about a third of the time oven roasting takes.
Two things matter more than anything else here. Use garlic powder, not fresh minced garlic, which scorches at 400°F long before the sweet potatoes are tender and leaves bitter flecks on an otherwise good batch. Onion powder works too. The second is oil: one tablespoon for two sweet potatoes is genuinely enough. More oil does not mean more crisp; it just means heavier cubes.
Sweet potatoes are the best kind of potato, and I have a lot of them on this blog, from air fryer sweet potato wedges to chicken parmesan stuffed sweet potatoes and cheesy scalloped sweet potatoes. But these cubes are the ones I actually make on a weeknight.
Serve them as a side, toss them into a salad, or eat them straight from the basket. That last one happens in my kitchen more often than I would like to admit.
Jump to:
- Crispy Air Fryer Sweet Potato Cubes At A Glance
- Why You'll Love This Air Fryer Recipe
- How Long to Air Fry Sweet Potato Cubes?
- Ingredients You'll Need
- Seasoning Variations
- How to Make Crispy Air Fryer Sweet Potato Cubes (Step-by-Step)
- Recipe Video
- Expert Tips for Crispy Air Fryer Sweet Potato Cubes
- Which Sweet Potatoes Work Best?
- What to Serve with Air Fryer Sweet Potato Cubes
- How to Store, Reheat & Meal Prep
- Air Fryer Sweet Potato Cubes FAQs
- More Crispy Potato Recipes You'll Love
- 📖 Recipe
- 💬 Comments
Why You'll Love This Air Fryer Recipe
- More crispy edges per bite: Cubes have more surface area than wedges or fries, so you get caramelized edges all the way through instead of just on the outside.
- Ready in 10 to 12 minutes: Oven roasting the same sweet potatoes takes 30 to 40 minutes, and you still have to preheat.
- Six ingredients, all pantry staples: Sweet potatoes, olive oil, paprika, garlic powder, salt, and pepper. Nothing you need to shop for.
- 130 calories a serving: One tablespoon of oil is all these need, so they stay light enough to go with anything.
- Reheat without going soggy: Three to five minutes in the air fryer at 350°F brings them back crisp, which is why they hold up for meal prep all week.
⭐️⭐️⭐️⭐️⭐️
So crispy! Loved them.
- Lily
How Long to Air Fry Sweet Potato Cubes?
Air fry sweet potato cubes at 400°F (200°C) for 10 to 12 minutes, shaking the basket halfway through. Smaller cubes finish faster. They are done when the edges are browned and a fork slides in with no resistance.
| Cube size | Time at 400°F | Notes |
|---|---|---|
| ½ inch | 8 to 10 minutes | Crispiest, watch the last 2 minutes |
| ¾ inch | 10 to 12 minutes | Best crisp-to-creamy balance, what I use |
| 1 inch | 12 to 14 minutes | Creamiest centers, fewest crispy edges |
| Frozen | 14 to 16 minutes | No thawing, shake twice |
Ingredients You'll Need
You need six simple ingredients to make these crispy air fryer sweet potato cubes, and they are all pantry staples. Here's everything:
- Sweet Potatoes: Peel and cut two medium sweet potatoes into ¾-inch cubes. I recommend Garnet or Jewel, but white-fleshed varieties work too. It's the same size sweet potato cubes I use in my Maple Roasted Sweet Potatoes and Brussels Sprouts.
- Olive Oil: One tablespoon is all these need. A light coating prevents dryness and helps the edges crisp without weighing the cubes down.
- Paprika: Adds warmth and deepens the color on the edges.
- Garlic Powder: Use powder, not fresh minced garlic, which scorches at 400°F. Onion powder works if that's what you have.
- Salt & Pepper: For basic seasoning and flavor.
Scroll to the recipe card for quantities!
Seasoning Variations
- Herby: Add ½ teaspoon dried oregano, thyme, or rosemary with the other seasonings. Dried holds up in the air fryer. Fresh herbs burn, so save those for after cooking.
- Smoky: Swap regular paprika for smoked paprika, one for one. That single change does more than any other variation here.
- Spicy: Add ¼ teaspoon chili powder or cayenne. Sweet potatoes take heat well because the natural sugars balance it out.
- Sweet and warm: Sprinkle 1 tablespoon coconut sugar or brown sugar over the cubes in the last 3 minutes of cooking. Added at the start, the sugar burns before the potatoes finish.
- Sweet potato variety: Garnet and Jewel go sweetest and creamiest. Japanese sweet potatoes have drier, denser flesh, so they crisp harder and need 2 to 3 extra minutes. White-fleshed varieties land in between.
Craving crispy potatoes without the sweetness? Try my crispy oven roasted potatoes made with Yukon Golds.
How to Make Crispy Air Fryer Sweet Potato Cubes (Step-by-Step)
Preheat your air fryer to 400°F (200°C) and lightly grease the basket with olive oil or non-stick spray.
- Step 1: Prep and cut. Peel the sweet potatoes, or leave the skin on, and cut them into ¾-inch cubes. Toss in a bowl with the olive oil and seasonings until coated.
- Step 2: Air fry. Spread the cubes in a single layer and cook for 10 to 12 minutes, shaking halfway. They're done when the edges are browned and a fork slides in easily.
Serve them hot with your favorite dipping sauce, or add them to these quinoa sweet potato bowls.
Recipe Video
Expert Tips for Crispy Air Fryer Sweet Potato Cubes
- Cut them the same size: Uneven cubes finish at different times, so you end up with burnt small pieces and firm big ones in the same batch. Consistency matters more than the exact size.
- Single layer, always: Two quick batches beat one soggy one.
- Shake at the halfway mark: The cubes touching the bottom brown first. Shaking is what keeps the batch even instead of half crisp and half pale.
- Don't skip the oil, but don't overdo it: One tablespoon for two sweet potatoes is enough. Extra oil weighs the cubes down without making them any crispier.
- Garlic powder, not fresh: Minced garlic scorches at 400°F long before the cubes are tender and leaves bitter flecks behind.
Which Sweet Potatoes Work Best?
Garnet and Jewel are the best choice for air frying. Both have moist orange flesh that turns creamy inside while the edges caramelize, and they need no timing adjustment.
- Garnet: Deep orange flesh, the sweetest of the common varieties, reliably creamy centers. My default.
- Jewel: Slightly less sweet than Garnet and a little firmer, so the edges crisp a touch harder. Interchangeable in this recipe.
- Japanese (Murasaki): Purple skin, pale dry flesh. Denser and starchier, so they crisp harder but need 2 to 3 extra minutes.
- White-fleshed: Milder and less sweet, with a texture closer to a regular potato. Good if you want them savory rather than sweet.
Buying tip: Pick firm potatoes with smooth skin and no soft spots. Store them somewhere cool and dark, not the fridge, which turns the starch grainy.
What to Serve with Air Fryer Sweet Potato Cubes
- With a protein: Crispy grilled chicken thighs, air fryer boneless skinless chicken thighs, grilled fish, grilled turkey burgers, or tofu.
- In a bowl: Add them to healthy burger bowls for the starch component.
- In a salad: Toss the cooled cubes with greens, nuts, and a tangy dressing.
- With a dipping sauce: Tzatziki, healthy yogurt ranch dip, or spicy mayo.
- With steak: I love sweet potatoes with my air fryer filet mignon.
- Finished simply: A dollop of Greek yogurt, fresh cilantro or thyme, a squeeze of lime, or a drizzle of honey.
How to Store, Reheat & Meal Prep
- Storage: Cool the cubes completely, then store in an airtight container in the fridge for up to 5 days. Sealing them warm traps steam and softens them.
- Reheating: Air fry at 350°F (175°C) for 2 to 4 minutes to bring the crisp back. The microwave works in 30 to 75 seconds, but they'll come out soft.
- Freezing: Freeze cooked cubes in a freezer bag for up to 3 months. Reheat from frozen at 350°F (175°C) for 5 to 7 minutes.
- Meal prep: These hold their texture better than roasted sweet potatoes, so a double batch on Sunday lasts the week.
Air Fryer Sweet Potato Cubes FAQs
Air fry them at 400°F (200°C) for 10 to 12 minutes, shaking the basket halfway through. Smaller cubes finish closer to 10 minutes, larger ones closer to 14.
No. Soaking helps with regular potatoes because it removes surface starch, but sweet potatoes have less starch and more sugar. Soaking adds moisture you then have to cook off.
Almost always crowding. Cubes packed in more than one layer trap steam, and steam prevents browning. Cook in two batches instead.
Cut them at least 1 inch so there's enough interior to stay creamy, and pull them as soon as a fork slides in easily. Small cubes and a few extra minutes are what dry them out, not too little oil.
Yes, straight from frozen with no thawing. Add 4 to 6 minutes to the cook time and shake the basket twice, since frozen cubes release more moisture.
No. Minced garlic scorches at 400°F long before the cubes are tender. Use garlic powder, or onion powder if that's what you have.
They're a good source of fiber, vitamin A, and potassium, and air frying uses a fraction of the oil deep frying does. This recipe runs about 130 calories per serving with one tablespoon of oil for two potatoes.
No. The skin crisps up nicely and holds nutrients, so it comes down to preference. Just scrub them well if you leave the skin on.
More Crispy Potato Recipes You'll Love
If you loved these air fryer sweet potato cubes, here are a few more crispy potato recipes to try next:
Did you make this recipe?
If you make this recipe, be sure to comment and rate it down below. Also, don't forget to tag me @healthfulblondie on Instagram and use the hashtag #healthfulblondie so I can see your delicious creation and share it with my followers!
📖 Recipe
Air Fryer Sweet Potato Cubes
Video
Ingredients
- 2 medium sweet potatoes, peeled and cut into ¾-inch cubes
- 1 tablespoon olive oil
- 1 teaspoon salt
- ½ teaspoon paprika
- ½ teaspoon garlic powder
- ¼ teaspoon black pepper
Instructions
- Preheat: Heat the air fryer to 400°F (200°C) and lightly grease the basket with olive oil or non-stick spray.
- Cut: Peel the sweet potatoes and cut them into ¾-inch cubes, keeping them the same size so they cook evenly. You can leave the skin on if you prefer.
- Season: Add the cubes to a large bowl with the olive oil, paprika, garlic powder, salt, and pepper. Toss until every piece is coated.
- Air fry: Spread the cubes in a single layer in the basket and cook for 10 to 12 minutes, shaking halfway through. Work in two batches if they don't fit in one layer.
- Check and serve: The cubes are done when the edges are browned and a fork slides in with no resistance. Serve right away for the crispiest texture.
Notes
Nutrition
Recipe tested and developed by Tati Chermayeff, creator of Healthful Blondie. A former Division I rower, Ironman triathlete, and recipe developer based in Austin, TX, Tati creates high-protein, air fryer, and healthy recipes that actually taste like the real thing.
Lily says
So crispy! Loved them
Tati Chermayeff says
Hi Lily - thank you so much for taking the time to write this review. i am SO happy you loved them as much as me! SO CRISPY!
Kira Sturgess says
So quick and easy!
Tati Chermayeff says
Kira, YAY! Thank you for leaving a review. Means a lot and I am so happy you loved these crispy air fried sweet potato cubes.