Air Fryer Sweet Potato Slices (Tender with Crisp Edges)

Air Fryer Sweet Potato Slices

I rely on the visual cue more than the clock here because air fryers vary. The slices should be lightly browned at the edges, dry on the surface, and tender in the center. The part I pay attention to most is thickness. If the rounds are cut too thin, they can turn hard before the middle softens.

This version keeps the method simple with sweet potatoes, olive oil, cinnamon, and salt. You get tender rounds with lightly crisped edges, one halfway flip for even browning, and a seasoning base that can lean sweet or savory depending on what you want to serve with dinner.

Ingredients for Air Fryer Sweet Potato Slices

• 2 medium sweet potatoes, about 1 1/2 pounds (675g)
• 1 tablespoon olive oil
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon kosher salt

Peel is optional. I usually leave it on when I want a little more texture, but peeling gives a smoother bite.

If you use table salt instead of kosher salt, start with 1/4 teaspoon and adjust after cooking.

Avocado oil or canola oil can replace the olive oil.

Best Thickness for Sweet Potato Slices in the Air Fryer

Cut the sweet potatoes into rounds about 1/4 to 1/3 inch thick. That gives you a tender center with some browning around the edges.

Uniform slices matter more than hitting one exact measurement. If the rounds are close in size, they finish more evenly. If you want true chip-level crunch, try our Air Fryer Sweet Potato Chips.

How to Make Air Fryer Sweet Potato Slices

1. Preheat the air fryer: Preheat to 380°F (193°C) for 3 to 5 minutes if your model has a preheat setting. This helps the slices start browning right away. If you skip preheating, expect the cook time to run about 1 to 2 minutes longer.
2. Slice the sweet potatoes: Wash and dry the sweet potatoes, then peel if you prefer. Cut them into uniform rounds about 1/4 to 1/3 inch thick. Pat dry if the slices feel damp.
3. Season the slices: Toss the rounds with the olive oil, cinnamon, and salt until they have a light, even sheen. You want enough oil to coat the surface lightly, not so much that it pools in the bowl.
4. Arrange in the basket: Place the slices in a single layer with a little space between them. Do not overlap. Cook in batches if needed. If sticking is a concern, lightly mist the basket first.
5. Cook the first side: Air fry at 380°F (193°C) for 6 to 8 minutes, until the bottoms start to turn golden and the edges look a little drier.
6. Flip and finish: Flip each slice once, then cook for 5 to 8 minutes more at 380°F (193°C) until fork-tender in the center and lightly browned at the edges. A finished slice should bend slightly without snapping. If you are using an oven-style air fryer, rotate the trays at the halfway point for more even color.
7. Serve hot: Taste and add another small pinch of salt if needed. These are best right away, while the edges are still lightly crisped.

Air Fryer Time and Temperature for Sweet Potato Slices

Cook sweet potato slices at 380°F (193°C) for about 12 to 16 minutes total when they are cut 1/4 to 1/3 inch thick.

Start checking a few minutes early if your air fryer runs hot. In most models, a halfway flip is enough. I usually look for edges that are lightly browned and centers that give easily with a fork. The reference model here is an Instant Vortex 6-quart.

Why Air Fryer Sweet Potato Slices Turn Hard or Burn

• Slices are too thin: Thin rounds can dry out before the centers soften. Stay closer to 1/4 to 1/3 inch thick.
• The basket is crowded: Too much overlap traps steam and slows browning, so the slices can cook unevenly.
• Your air fryer has hot spots: Flip halfway, and rotate trays in an oven-style model if one side colors faster.
• The cinnamon darkens early: In hotter air fryers, cinnamon can brown fast. If the surface is getting too dark before the centers are tender, keep a closer eye on the final minutes.
• There is too little oil: A light coating helps keep the surface from drying out too fast. Too much oil, though, gives softer browning.

Sweet and Savory Seasoning Options

I’d rather keep the seasoning simple here because sweet potatoes already bring plenty of flavor on their own.

• Sweet base: Use the cinnamon and salt as written.
• Savory version: Omit the cinnamon and use 1/4 teaspoon garlic powder plus 1/4 teaspoon smoked paprika.
• Chili variation: Use 1/4 teaspoon chili powder and 1/4 teaspoon black pepper for a warmer, more savory finish.

Avoid adding sugar for this method. It can burn before the sweet potatoes are tender.

Serving Ideas for Air Fryer Sweet Potato Slices

These sweet potato rounds work as a side, snack, or part of a larger plate. They pair especially well with spicy garlic aioli, sriracha aioli, or plain ketchup. I also like them next to steak or fried chicken.

For a different shape that works well in bowls, try Air Fryer Sweet Potato Cubes. If you want a thicker, fry-like cut, check out Air Fryer Sweet Potato Wedges.

How to Store and Reheat Air Fryer Sweet Potato Slices

Let the slices cool completely, then refrigerate them in an airtight container for up to 4 days. I would not freeze them here; the texture tends to turn mealy after thawing.

To reheat, air fry at 350°F (177°C) for 3 to 5 minutes until warmed through and lightly re-crisped at the edges. If you are reheating an earlier batch just before serving, 1 to 2 minutes is usually enough.

You can microwave leftovers for 45 to 90 seconds, but the texture will be softer than fresh.

Nutrition

Approximate nutrition per serving, based on 4 servings: 150 calories, 2g protein, 4g fat, 29g carbohydrates.

Approximate nutrition per 100g: 90 calories, 1g protein, 2g fat, 17g carbohydrates.

Nutrition is an estimate and will vary with potato size, peeling, and the exact amount of oil used.