Air fryer sweet potato fries make a tasty, easy side for one or two people. Follow this method for fries that are tender and sweet inside with a crisp, browned exterior. Homemade sweet potato fries pair wonderfully with burgers, sandwiches, or as a crowd-pleasing game day snack.
If you enjoy sweet potatoes, try variations like baked sweet potatoes or a sweet potato pizza crust for more ideas.
The Perfect Sweet Potato Side Dish
Sweet potato fries are a flavorful alternative to regular fries. Their natural sweetness and vibrant color make them a favorite in restaurants, and they’re simple to recreate at home using an air fryer. This method avoids deep frying while still delivering crisp edges and soft centers.
At home I prefer a simple approach—no splattering hot oil—and the air fryer gives reliably delicious results. The key elements are consistent fry size, a light starch coating to encourage crisping, and plenty of airflow around each fry while cooking.
Tips for Crisp Air Fryer Sweet Potato Fries
- Cut the sweet potatoes into uniform fry shapes so they cook evenly.
- Soaking is unnecessary. Unlike white potatoes, sweet potatoes don’t need a soak to crisp well.
- A light dusting of starch (arrowroot, tapioca, or organic corn starch) helps draw moisture from the surface and encourages browning.
- Don’t overcrowd the air fryer basket. Fries need room for hot air to circulate to become crisp instead of steaming.
What You’ll Need
- Sweet potatoes (peeled or unpeeled—peel if the skins are not fresh)
- Avocado oil or olive oil
- Arrowroot powder (or tapioca/organic corn starch)
- Sea salt
- Paprika
- Garlic powder
- Onion powder
- Optional: thyme, cayenne, or chili powder for a spicier variation
How to Cut Sweet Potato Fries
Step 1: If desired, peel the sweet potatoes. Cut each potato in half lengthwise.
Step 2: Place each half cut-side down and slice lengthwise into roughly 1/2 inch strips.
Step 3: Trim any uneven ends so each fry is a similar size for even cooking.
How to Make Sweet Potato Fries in an Air Fryer
Step 1: In a small bowl, mix the arrowroot (or chosen starch) with sea salt, paprika, garlic powder, and onion powder. Set aside.
Step 2: Place the cut sweet potatoes in a large bowl or on a tray and drizzle with avocado or olive oil. Use your hands to rub the oil evenly over each fry so they are lightly coated.
Step 3: Sprinkle the starch-and-spice mixture over the fries and use your hands to rub it into the oil so no dry powder remains. The thin starch layer helps produce a crisper surface.
Step 4: Preheat the air fryer to 360ºF (180ºC) for about 5 minutes. Cooking at slightly lower heat than 400ºF reduces the chance of burning before the centers are tender.
Step 5: Arrange the fries in a single layer in the air fryer basket, leaving space between pieces. If the basket is crowded, the fries will steam and won’t get crispy. Cook in batches if needed.
Step 6: Air fry for about 10–12 minutes, or until fries are beginning to brown and crisp around the edges. You can shake the basket halfway through for more even browning; flipping is optional depending on your air fryer model.
Cook sweet potato fries in small batches for the best results. If you consistently prepare large quantities, consider a larger-capacity air fryer so you can maintain space between fries and achieve even crisping.
FAQ and Variations
How to store leftover sweet potato fries
Keep leftovers in an airtight container in the refrigerator for up to five days. Enjoy them cold in salads or reheat in the air fryer: preheat to 360ºF and cook for about 5 minutes until warmed and crisped.
How to cook frozen sweet potato fries in an air fryer
For frozen fries, preheat the air fryer to 390ºF for 5 minutes. Place the frozen fries in the basket in a single layer without overcrowding and cook 6–8 minutes, until they begin to brown and crisp at the edges.
Frozen brands offer a quick option when you need fries in a hurry.
No air fryer? Use your oven
If you don’t have an air fryer, you can get a similar result in a conventional oven. Arrange fries on a parchment-lined baking sheet with space between pieces and bake at a high temperature, flipping once, until edges brown and centers are tender. Follow oven-baked fry guidance for timing and temperature adjustments.
Crispy Air Fryer Sweet Potato Fries — Recipe Summary
Crispy Air Fryer Sweet Potato Fries
Ingredients
- 1 pound sweet potatoes, cut into fry shapes (peeling optional)
- 1/2 tablespoon avocado oil or olive oil
- 1/2 tablespoon arrowroot starch (or tapioca/organic corn starch)
- 1/2 teaspoon sea salt
- 1/4 teaspoon garlic powder
- 1/4 teaspoon onion powder
- 1/4 teaspoon paprika
Instructions
- In a small bowl, combine the arrowroot (or chosen starch) with the spices and sea salt.
- Add half of the sliced sweet potatoes to a tray or bowl. Drizzle with oil and rub to coat evenly.
- Sprinkle the spice-starch mixture over the oiled fries and rub until evenly coated.
- Preheat the air fryer to 360ºF (5 minutes).
- Arrange the sweet potatoes in the air fryer basket in a single layer with space between each piece. Cook in batches if needed to avoid overcrowding.
- Air fry for 10–12 minutes, shaking the basket halfway if desired, until fries are browned and crispy at the edges. Repeat with remaining fries.
Notes
Store leftovers in an airtight container for up to five days. Reheat in the air fryer at 360ºF for about 5 minutes. For frozen fries, preheat to 390ºF and cook 6–8 minutes, checking for browning at the edges.
Nutrition (per serving)
Calories: 236 kcal | Carbohydrates: 48 g | Protein: 4 g | Fat: 4 g | Fiber: 7 g | Sugar: 10 g | Sodium: 707 mg | Potassium: 777 mg