Zucchini holds a lot of water, making it tricky to get crispy. An air fryer and the right prep technique deliver a perfect crunch. This recipe features both a crispy breaded version and a simple seasoned version.
Why This Works
- Salting the zucchini slices before cooking draws out excess water, which is the main enemy of crispiness. A quick 10-minute rest and a thorough pat-dry prevents steaming in the air fryer.
- For the breaded chips, a standard three-step dredge creates a dry, craggy surface that crisps up immediately when it hits the hot air, sealing the zucchini inside.
- The dehydrated-style chips rely on a very thin slice, about 1/16-inch [1.5 mm] thick. At a lower air fryer temperature, the water evaporates slowly, leaving behind concentrated flavor and a chip-like snap without burning.
- Cooking in a single layer with space between each round is non-negotiable. Air needs to circulate around every chip to crisp both sides evenly, which is the whole point of using an air fryer.
What You Need
- Air fryer (basket-style works best)
- Sharp chef’s knife or mandoline
- Clean kitchen towel or paper towels
- Three shallow bowls (for breaded version)
- Mixing bowl
- Tongs
Ingredients
- 2 medium (about 1 lb [450 g]) zucchini
- 1 tsp fine sea salt, plus more for finishing
- 1/4 cup [30 g] all-purpose flour
- 1 large egg
- 1/2 cup [30 g] plain breadcrumbs or panko
- 1/4 cup [25 g] finely grated Parmesan cheese (optional, for breaded version)
- 1/2 tsp garlic powder
- 1/2 tsp dried oregano or Italian seasoning
- 2 Tbsp olive oil or cooking oil spray
Instructions

- Slice the zucchini. Trim the ends off the zucchini. For breaded chips, slice into 1/4-inch [6 mm] thick rounds. For simple seasoned chips, use a mandoline or a very sharp knife to slice into 1/16-inch [1.5 mm] thick rounds. Consistent thickness is crucial for even cooking.
- Salt and rest to remove moisture. Spread the zucchini slices in a single layer on a clean kitchen towel or a double layer of paper towels. Sprinkle both sides lightly with the 1 teaspoon of fine sea salt. Let them sit for 10 minutes. You will see beads of water form on the surface of the slices.
- Pat the slices completely dry. Use another clean towel or fresh paper towels to press down firmly and blot away all the moisture and excess salt from both sides of every slice. Do not skip this step; any surface moisture left will steam the chips and make them limp.
- Season or set up the breading station. For simple seasoned chips: toss the dried slices in a bowl with 1 tablespoon of oil, garlic powder, and dried oregano until lightly coated. For breaded chips: set up three shallow bowls. Place flour in the first, beat the egg with 1 tablespoon of water in the second, and mix breadcrumbs with Parmesan and garlic powder in the third.
- Bread the zucchini (for breaded version only). Dip each 1/4-inch [6 mm] zucchini round first in flour, shaking off the excess. Then dip it in the beaten egg, letting the extra drip off. Finally, press it into the breadcrumb mixture, coating both sides evenly. Place the breaded rounds on a clean plate.
- Preheat the air fryer to 375°F [190°C]. Preheat your air fryer for 3 minutes. A hot basket starts the crisping process immediately, which is essential for preventing the chips from getting greasy or soggy.
- Arrange in a single layer and oil lightly. Place the zucchini rounds in the air fryer basket in a single layer with a little space between each one. Work in batches if needed; overcrowding is the quickest way to ruin a batch of chips. Lightly spritz the tops with oil spray or brush very lightly with oil.
- Air fry the breaded chips. Cook the breaded chips at 375°F [190°C] for 8 to 10 minutes, flipping them carefully with tongs halfway through. They are done when the breading is deeply golden brown and crunchy. The zucchini inside should be tender but not mushy.
- Air fry the simple seasoned chips. Cook the thin, seasoned slices at 300°F [150°C] for 12 to 16 minutes, flipping them and rotating the basket position halfway through. Start checking at 12 minutes. The chips will curl at the edges and turn lightly golden with a dry, crisp texture. They will continue to crisp as they cool.
- Season immediately and cool. As soon as the chips come out of the air fryer, sprinkle them with a pinch of flaky salt or your chosen seasoning. Transfer them to a wire rack to cool completely; this keeps air flowing underneath so the bottoms don’t steam. They will firm up more in the first 2 minutes off the heat.
Tips for the Best Results
- Pick firm, medium-sized zucchini. Huge, seedy ones contain more water and will never get as crisp.
- A mandoline is your best tool for the thin dehydrated-style chips. It guarantees even slices that dry out at the same rate, so you avoid a batch of half-burnt, half-soggy rounds.
- For the breaded chips, panko breadcrumbs will give you a lighter, crunchier texture than regular fine breadcrumbs. Either works, but panko is noticeably crispier.
- Don’t be shy with the oil spray on the breaded chips. A light but even coating on the dry breadcrumbs is what lets them fry and turn golden-brown in the air fryer’s heat.
- Cook in batches and keep the first batches warm in a low oven (250°F [120°C]) on a wire rack while you finish the rest. This keeps them crunchy without overcooking.
- Season the chips the second they come out of the basket. A little heat helps the salt and spices stick to the surface better than if you wait until they’re cool.
Troubleshooting
Chips came out soggy
This almost always means the zucchini wasn’t dried well enough after salting, or the basket was overcrowded. Next time, press the slices firmly between towels until they feel dry to the touch, and cook in a single layer with visible space between rounds. For breaded chips, make sure your air fryer is fully preheated before adding the food.
Breading fell off in the basket
The zucchini rounds were likely still damp when they went into the flour. Even a little moisture can make the coating slide off. After salting and blotting, make sure the slices are bone-dry. Also, press the breadcrumbs on firmly and let the breaded chips rest on a plate for 5 minutes before air frying to help the coating set.
Chips burned before they got crispy
For the thin dehydrated chips, the temperature was too high. Stick to 300°F [150°C] and check them early. Every air fryer runs a little differently; your first batch is your test batch, so start checking 2 minutes before the shortest cook time.
Storing and Re-Crisping
Cool the chips completely within 2 hours of cooking. Store them in an airtight container in the refrigerator for up to 3 days. To re-crisp, pop them back in the air fryer at 350°F [175°C] for 1 to 2 minutes, then let them cool for a minute before eating. Do not store at room temperature, as cooked vegetables are perishable and will spoil.
Variations to Try
- Spicy Cajun chips: Add 1/2 teaspoon of smoked paprika and 1/4 teaspoon of cayenne pepper to the breadcrumb mixture or toss with the simple seasoned slices before air frying.
- Ranch zucchini chips: Stir 1 tablespoon of dry ranch seasoning mix into the breadcrumbs for a tangy, herby coating that tastes great on the breaded version.
- Everything bagel chips: After air frying the simple seasoned chips, sprinkle them immediately with everything bagel seasoning. The coarse salt and seeds stick perfectly to the warm, oiled surface.
- Lemon-pepper zing: Toss the dehydrated-style chips with lemon zest and freshly cracked black pepper the moment they come out of the basket for a bright, sharp flavor.
- Cheesy no-breading chips: For a simple, high-flavor version, toss the thin slices with oil and then with 2 tablespoons of finely grated Parmesan before air frying at 300°F [150°C]. The cheese will melt and form a lacy, crispy edge.
Frequently Asked Questions
Do I really need to salt and dry the zucchini first? I’m in a hurry.
Yes, this is the most important step for both methods. Without it, the zucchini releases its water into the air fryer basket, steaming the chips instead of crisping them. The 10-minute salt rest and thorough drying is the difference between a crunchy chip and a limp, sad round of squash.
Can I make these without any oil at all?
You can, but the results will be dry and papery rather than crisp. A small amount of oil helps conduct heat and brown the surface. For the breaded chips, a light spritz of oil is essential to crisp the breading. For the simple chips, a teaspoon of oil tossed with the slices makes a big difference in texture.
My air fryer is small. Can I stack the zucchini slices?
No, stacking or overlapping will trap steam and give you unevenly cooked, soggy chips. Cook in as many single-layer batches as needed. The good news is that each batch only takes 8 to 16 minutes, so the whole process is still faster than using a full-size oven.
Can I use yellow squash instead of green zucchini?
Absolutely. Yellow squash has a very similar water content and texture, so you can use the exact same method and cook times. The flavor is slightly sweeter but works beautifully with all the same seasonings.
Why did my dehydrated-style chips turn out chewy instead of crisp?
Chewy chips mean they weren’t sliced thin enough or they needed a few more minutes in the air fryer. Aim for a true 1/16-inch [1.5 mm] thickness, and don’t be afraid to cook them until the edges are visibly curled and the centers look dry. They will harden and crisp up further as they cool on the rack.