This easy recipe for Air Fryer Sweet Potato Cubes is seasoned simply and perfectly, quick to prepare, and pairs well with many mains. Tender sweet potato cubes roast in under 20 minutes in the air fryer, developing a crisp exterior and a fluffy interior. Using an air fryer saves time and energy while often producing crispier results with less oil than a conventional oven.
These cubes use just a tablespoon of avocado oil and a small blend of spices for bright, balanced flavor. They’re excellent for dipping—try them with curry mayo, chipotle mayo, garlic aioli, or your favorite condiment. Minimal hands-on time makes them ideal for weeknight dinners or as a meal-prep component.
Made with a small amount of oil and pantry spices, these air fryer sweet potato cubes are a healthy, naturally vegan side that complements chicken, steak, or plant-based mains. They crisp up quickly and reheat well, so they’re practical for batch cooking.
Why You’ll Love This Recipe
- Healthy, versatile side dish that works with many flavor profiles and proteins.
- Ready in less than 20 minutes, perfect for busy weeknights.
- Great for meal prep — they store and taste good cold or reheated.
- Natural vegan recipe; easy to adapt for other diets.
Ingredients
- Sweet potatoes: About 1 pound total — roughly 1 large or 2 small potatoes. You can scale the recipe, but cook in batches to keep them crisp.
- Avocado oil: 1 tablespoon. Any neutral oil with a high smoke point works if you prefer another option.
- Seasonings: Salt, smoked paprika, garlic powder, chili powder, and cumin. Cinnamon is an optional swap for a sweeter, warming profile.
Equipment
- Air fryer: Any model will work — basket or oven-style. Adjust cooking time slightly if your unit cooks hotter or is oven-style.
How to Cut Sweet Potatoes Into Cubes
For even cooking, cut the sweet potatoes into uniform ½–1″ cubes. A consistent size ensures they cook through at the same rate and crisp evenly.
- Peel each sweet potato (optional) and slice into ½–1″ thick rounds.
- Cut each round into ½–1″ strips lengthwise, then cross-cut into cubes.
- You should end up with evenly sized cubes ready for seasoning and air frying.
How to Make Sweet Potato Cubes in the Air Fryer
Once the sweet potatoes are cubed, preheat the air fryer to 400ºF for at least 3 minutes or follow your model’s preheat guidance. Combine the oil and seasonings in a medium bowl to form a thin paste, then toss the cubes until evenly coated.
Coating first helps the spices cling to the potatoes and promotes browning in the air fryer.
Air Frying Sweet Potato Cubes
- Place the seasoned cubes in a single layer in the preheated air fryer basket. Avoid crowding so they crisp rather than steam.
- Cook at 400ºF for 10–12 minutes, shaking or stirring the basket halfway through to promote even browning.
- Check for doneness — the cubes should be tender when pierced with a fork. Remove and let rest 2–5 minutes before serving to allow surfaces to firm up slightly.
- Serve warm with your favorite dipping sauce or condiment.
Best Dipping Sauces for Roasted Sweet Potatoes
- Curry mayonnaise (or plain mayo with curry powder)
- Chipotle mayonnaise
- Ketchup
- Ranch dip
- Garlic aioli
- Honey mustard
- Guacamole
Expert Tips
- Do not overcrowd the basket. Sweet potatoes release steam, so cook about 1 pound per batch for the best crispness.
- Smaller ½” cubes cook faster and get crispier; 1″ cubes take a bit longer but yield a softer interior.
- If using an oven-style air fryer, add 1–3 minutes to the cooking time and check for doneness with a fork.
- For meal prep, cool roasted sweet potatoes completely before sealing in containers to avoid condensation and sogginess.
Variations and Substitutions
With cinnamon: For a warm, sweet profile add ½ teaspoon ground cinnamon to the spice mix, or replace the other spices (except salt) with 1½ teaspoons cinnamon and use melted butter instead of oil for a richer finish.
No oil: You can minimize oil by using a light spray of cooking oil over the cubes, then tossing them with the dry spices. They may char more easily in the air fryer, so watch closely.
Frequently Asked Questions
No. You don’t need to soak sweet potatoes before air frying for this recipe. Peeled or unpeeled cubes can be seasoned and placed straight into the basket.
Peel the potatoes if desired, cut into ½–1″ rounds, then slice each round into strips and cross-cut to form even cubes.
Avoid overcrowding the basket so air can circulate. Work in single batches of about 1 pound of cubes for consistent crisping and even cooking.
More Easy Side Dishes
- Air Fryer Baby Potatoes
- Slow Cooker Maple Glazed Carrots
- Instant Pot White Rice
- Instant Pot Wild Rice Blend
- Slow Cooker Funeral Potatoes
Air Fryer Sweet Potato Cubes
Air Fryer
American
8 minutes
12 minutes
20 minutes
4 servings
130kcal
Dorothy Bigelow
Ingredients
- 1 pound sweet potato peeled and cut into ½–1″ cubes (1 large or 2 small)
- 1 tablespoon avocado oil
- ½ teaspoon salt
- ¼ teaspoon smoked paprika
- ¼ teaspoon garlic powder
- ¼ teaspoon chili powder optional
- ¼ teaspoon cumin optional
Instructions
- Preheat the air fryer to 400ºF for at least 3 minutes, or follow your model’s instructions.
- Combine the avocado oil and seasonings in a medium bowl and whisk to combine.
- Toss the cubed sweet potatoes in the seasoned oil until evenly coated.
- Arrange the cubes in a single layer in the air fryer basket and cook 10–12 minutes, shaking halfway through for even browning.
- Remove when tender and slightly crispy. Serve with your preferred dipping sauce.
Notes
With cinnamon: Add ½ teaspoon cinnamon to the spice mix, or substitute the spices (except salt) with 1½ teaspoons cinnamon and use melted butter for a sweeter variation.
Without oil: Use a light spray of oil on the cubes and toss with dry spices before air frying; monitor closely as they may char more easily.
Nutrition
|
Carbohydrates: 23 g
|
Protein: 2 g
|
Fat: 4 g
Please note that some blog posts may contain affiliate links. If you purchase through those links, the author may earn a small commission at no additional cost to you. See the site disclaimer for details.