Crispy Air Fryer Sweet Potato Chips (Easy & Healthy Snack!)

Are you looking for the ultimate crunchy, guilt-free snack? Look no further! These Air Fryer Sweet Potato Chips are thin, incredibly crispy, and perfectly seasoned. Unlike traditional deep-fried potato chips that are loaded with unhealthy oils, this air fryer version uses just a fraction of the oil while delivering that maximum crunch we all crave. 

Whether you need a quick afternoon pick-me-up, a healthy side dish for burger night, or a game-day snack, these homemade sweet potato chips are about to become your new favorite. Plus, they are naturally vegan, gluten-free, and Whole30-approved!

 Watch How to Make It:

Crispy Air Fryer Sweet Potato Chips (No Soggy Chips, We Promise!)

There's nothing worse than making homemade chips only to have them turn out chewy and limp instead of crisp. It happens to almost everyone the first time — and it's almost always because of one skipped step. Once you know the trick (hint: it involves a bowl of water), you'll never go back to store-bought chips again.

This recipe uses just three ingredients, takes under 15 minutes in the air fryer, and gives you a snack that's actually good for you. Here's everything you need to know to get it right the first time.

Why This Recipe Works

• It's genuinely nutritious. Sweet potatoes bring vitamin A, vitamin C, fiber, and antioxidants to the table — so this is a snack you can feel good about reaching for.
• They come out truly crispy. No soggy centers, no chewy edges. We'll walk you through the exact trick that makes the difference.
• It's fast. From slicing to snacking, you're looking at well under 30 minutes total, with only 10–12 minutes of actual cook time.
• You can make it your own. Keep it simple with just salt, go sweet with a cinnamon dusting, or add smoked paprika and a pinch of cayenne for something with a kick.

What You'll Need

Just three basics:

1. Sweet potatoes — 2 medium ones, similar in size so they cook evenly.
2. Olive oil or avocado oil — 1 to 1.5 tablespoons. Avocado oil handles high heat especially well, so it's a great pick for air frying.
3. Sea salt — to taste.

Optional add-ins: garlic powder, smoked paprika, black pepper, or a dash of cayenne if you like a little heat.

Equipment

• An air fryer — basket-style or oven-style both work fine.
• A mandoline slicer — this one's worth having. Getting the slices paper-thin and evenly cut is what makes or breaks the crunch. No mandoline? A sharp chef's knife works too, just take your time and slice as thin as you can manage.

Step-by-Step Instructions

1. Slice the potatoes. Wash and scrub the sweet potatoes well. Peeling is optional — the skin adds a bit of extra fiber and gives the chips a nice rustic texture. Using your mandoline, slice into thin, even rounds, roughly 1/16 to 1/8 inch thick.

2. Soak the slices (don't skip this). Drop the slices into a large bowl of cold water and let them sit for 15–20 minutes. This pulls out excess surface starch, which is the single biggest reason homemade chips turn out soggy instead of crisp. It's a small step that makes a big difference.

3. Dry them thoroughly. Drain the water and spread the slices out on a clean kitchen towel or paper towels. Pat them completely dry — any moisture left on the surface will steam the potato instead of letting it crisp up, and you'll end up with soft chips.

4. Season. Add the dry slices back to a bowl, drizzle with oil, and sprinkle in your sea salt and any extra spices. Toss with your hands until every slice is lightly and evenly coated — no dry patches, no pools of oil at the bottom.

5. Air fry in batches. Preheat your air fryer to 350°F (175°C). Lay the slices in a single layer in the basket — a little overlap is fine, but avoid stacking them. Cook for 10–12 minutes, shaking or flipping the basket every 3–4 minutes. Stay close during the last couple of minutes; sweet potatoes have natural sugars that make them brown fast, and the line between crispy and burnt is thin.

6. Cool and let them crisp up. Move the chips to a cooling rack or a paper-towel-lined plate. They'll actually get crunchier as they cool, so don't judge them straight out of the fryer. Repeat with the remaining batches.

Tips for Getting It Right

• Don't skip the soak. Without it, leftover starch keeps the chips chewy no matter how long you cook them.
• Don't crowd the basket. Air fryers rely on hot air circulating around the food. Overcrowding blocks that airflow, so cook in batches even if it feels slower — it's worth it.
• Watch the clock near the end. Because of their natural sugar content, sweet potatoes brown noticeably faster than regular potatoes, especially in the final 2 minutes.

Storing Leftovers

If you somehow end up with leftovers, keep them in an airtight container or zip-top bag at room temperature for 2–3 days. If they soften up over time, just pop them back in the air fryer at 350°F for 1–2 minutes to bring the crunch right back.