Baked Kohlrabi Chips (Crispy, Healthy, Addictive)

Vegetable chips sound great in theory. In practice, most of them are either leathery, burnt, or so fragile they shatter into crumbs before they reach your mouth. Kale chips taste like kale. Beet chips stain everything. Sweet potato chips are basically candy.

Kohlrabi chips actually deliver. They crisp up reliably, stay crunchy after cooling, have a neutral-to-sweet flavor that works with any seasoning, and clock in at a fraction of the carbs of potato chips. They’re not going to replace a bag of Lay’s — but they’re genuinely snackable.

Why Kohlrabi Works for Chips

The ideal chip vegetable needs three things: enough starch or sugar to crisp when dehydrated, low enough water content that it doesn’t take forever to dry out, and a flavor that doesn’t overpower the seasonings.

Kohlrabi checks all three boxes. Its flesh is dense and moderately starchy — not as starchy as potato, but enough to develop crispness. It has less water than zucchini, cucumber, or radish. And its flavor is so mild that it essentially becomes a vessel for whatever seasoning you put on it.

The nutritional profile helps too. One medium kohlrabi (about 150g) gives you roughly 27 calories, 4g net carbs, and 3.5g of fiber. Compare that to a medium potato at about 130 calories and 30g net carbs. For the full breakdown, see our kohlrabi nutrition guide.

Basic Baked Kohlrabi Chips

This is the core recipe. Master this, then experiment with seasonings.

Ingredients

• 2 medium kohlrabi (about 1.5 pounds total)
• 1-2 tablespoons olive oil or avocado oil
• 3/4 teaspoon fine sea salt
• Optional: 1 teaspoon cornstarch (adds slight crispness)

Equipment

• Mandoline slicer (strongly recommended)
• 2 sheet pans
• Parchment paper
• Clean kitchen towel or paper towels

Instructions

1. Preheat your oven to 300°F (150°C). Lower than you’d expect. Higher temperatures brown the edges before the centers dry out, giving you chips that are burnt on the outside and chewy in the middle.

2. Peel the kohlrabi generously. Remove both the outer skin and the woody underlayer. Any fibrous bits left behind will be tough and chewy in the finished chip.

3. Slice paper-thin with a mandoline. Set your mandoline to 1/16 inch (about 1.5mm). Consistency is everything — if some slices are thick and some are thin, the thin ones will burn while the thick ones stay soft. A knife won’t get you there. Use a mandoline.

4. Dry the slices thoroughly. Spread them on a clean kitchen towel in a single layer. Press another towel on top and pat firmly. You want to remove as much surface moisture as possible. This is the most important step after slicing thickness.

5. Toss with oil and salt. Transfer to a large bowl. Add oil and toss until every slice has a thin, even coating. You want just enough oil to coat — too much and they’ll fry rather than bake, which sounds good but actually makes them greasy and soft. If using cornstarch, sprinkle it over the slices and toss before adding oil.

6. Arrange in a single layer on parchment-lined sheet pans. Every slice should lie flat with no overlapping. This is tedious. It’s also non-negotiable. Overlapping slices steam each other and never crisp.

7. Bake for 20 minutes. Rotate the pans (swap rack positions and turn 180°). Bake for another 15-25 minutes, checking every 5 minutes. The chips are done when they’re golden at the edges and feel dry to the touch. Some will finish before others — remove done chips and return the rest.

8. Cool on a wire rack. They’ll crisp up more as they cool. Don’t stack them until they’re completely cool.

Yield: About 3-4 cups of chips (they shrink significantly) Active time: 15 minutes Total time: 45-60 minutes

Getting Them Truly Crispy: The Details

This is where most people fail. They follow the basic recipe and end up with leathery discs. Here’s what separates crispy chips from chewy disappointments.

Thickness Is Everything

1/16 inch. Not 1/8 inch. Not “as thin as I can cut with a knife.” A mandoline set to its thinnest or second-thinnest setting. If your slices are too thick, no amount of baking will make them crispy — they’ll just dry out and become kohlrabi jerky.

To test if your thickness is right: hold a slice up to the light. You should be able to see light through it. If it’s opaque, it’s too thick.

The Salt-and-Wait Method

For extra-crispy chips, try this technique: after slicing, spread the rounds on paper towels, sprinkle lightly with salt, and wait 15-20 minutes. The salt draws out moisture through osmosis. Blot the slices dry with paper towels before oiling. This removes more water than patting alone and gives you crispier results.

The downside is time — it adds 20 minutes to prep. Worth it if you’re making a large batch.

Low and Slow vs. High and Fast

Low and slow (300°F) is more reliable. The chips dry evenly and you have a wider window between “done” and “burnt.”

Some recipes call for 375°F or 400°F. This can work, but the margin for error shrinks dramatically. Chips on the edges of the pan will burn while chips in the center are still soft. You’ll spend the last 10 minutes hovering by the oven, pulling individual chips as they finish. If you’re comfortable with that level of attention, higher heat produces chips with slightly more browning and deeper flavor. Otherwise, stick with 300°F.

The Dehydrator Option

If you own a food dehydrator, it produces the most consistently crispy kohlrabi chips with the least risk of burning. Slice, oil lightly, season, and dehydrate at 135°F for 6-8 hours. The result is a chip that’s uniformly crispy from edge to center.

The time commitment is significant, but it’s entirely hands-off. Set it up before bed, wake up to chips.

Air Fryer Kohlrabi Chips

The air fryer works well for smaller batches.

1. Peel, slice, dry, and oil the kohlrabi as described above.
2. Arrange in a single layer in the air fryer basket. You’ll need to work in several batches — a standard air fryer basket holds maybe 15-20 slices at a time.
3. Cook at 325°F for 10-12 minutes, checking every 3-4 minutes. Flip the chips halfway through.
4. Remove when golden and dry. They’ll crisp further as they cool.

The air fryer is faster per batch but limited in capacity. Good for a quick snack, less practical for making a big batch.

Seasoning Variations

The beauty of kohlrabi chips is that the base flavor is almost blank. Season them however you want.

Salt and Vinegar

Mist the sliced kohlrabi with white vinegar (use a spray bottle) before adding oil and salt. The vinegar evaporates during baking, leaving behind its tangy flavor without sogginess.

BBQ

Mix 1 teaspoon smoked paprika, 1/2 teaspoon garlic powder, 1/2 teaspoon onion powder, 1/4 teaspoon cumin, pinch of cayenne, and 1/2 teaspoon salt. Toss with the oiled slices before baking.

Ranch

Toss with 1 tablespoon dried ranch seasoning mix after oiling. The herbs and buttermilk powder toast in the oven and create a savory coating.

Chili Lime

Mix 1 teaspoon chili powder, 1/2 teaspoon lime zest, 1/4 teaspoon cayenne, and 1/2 teaspoon salt. Squeeze fresh lime juice over the chips as soon as they come out of the oven.

Everything Bagel

Toss with everything bagel seasoning before baking. The sesame and poppy seeds add an extra layer of crunch.

Parmesan and Herb

Sprinkle finely grated Parmesan and dried Italian herbs over the chips during the last 5 minutes of baking. The Parmesan melts and forms a crispy cheese crust.

Curry

Mix 1 teaspoon curry powder, 1/2 teaspoon turmeric, and 1/2 teaspoon salt. The warm spices complement kohlrabi’s natural sweetness.

Storing Kohlrabi Chips

This is where many homemade vegetable chips fail — they go soft within hours. Kohlrabi chips hold up better than most, but proper storage matters.

Short-term (1-3 days): Store in an open paper bag at room temperature. The paper absorbs any residual moisture. Don’t use a sealed plastic bag or airtight container until you’re certain the chips are bone-dry — trapped moisture will make them go soft overnight.

Medium-term (up to a week): Once completely cooled and confirmed crispy, store in an airtight container with a small silica gel packet or a few grains of raw rice at the bottom (these absorb humidity). Keep at room temperature — refrigeration introduces moisture.

Re-crisping: If your chips go slightly soft, spread them on a sheet pan and bake at 300°F for 5-7 minutes. They’ll usually crisp back up. If they’ve absorbed a lot of moisture (left out in a humid kitchen), they may not fully recover.

Serving Ideas

Kohlrabi chips work as a straight-up snack, but they also serve practical roles:

As a dipper. Sturdy enough to scoop guacamole, hummus, or any thick dip without breaking. Much lower in carbs than pita chips or tortilla chips.

On top of soups. Float a few chips on top of a bowl of kohlrabi soup or any pureed soup. They add crunch and visual interest.

As a salad topper. Crumble chips over a salad in place of croutons.

Alongside cheese and charcuterie. They’re neutral enough to pair with any cheese and add textural contrast to a board.

For nachos. Layer chips on a sheet pan, top with cheese, jalapeños, sour cream, and whatever else you’d put on nachos. Bake until the cheese melts. Lower carb than corn chips, and they hold up under the toppings better than you’d expect.

Common Mistakes

Slicing too thick. Mentioned three times now because it’s the most common failure point. Use a mandoline. Set it thin. Accept that some slices will be imperfect.

Overcrowding the pan. If slices overlap, they steam. Steamed chips are not chips. Use two pans. Use three pans. Whatever it takes to get a single layer.

Too much oil. A light coating is all you need. The chips should feel slightly slick, not drenched. Excess oil pools and prevents crisping.

Opening the oven too often. Every time you open the door, you release dry heat and let in humid room air. Check at the 20-minute mark, then at 5-minute intervals after that.

Not waiting for them to cool. Chips fresh from the oven feel soft because they’re still hot and moist. Give them 5-10 minutes on a wire rack. They firm up as moisture escapes and starches set.

Kohlrabi chips take a bit of patience — thin slicing, careful arrangement, attentive baking. But the payoff is a genuinely crispy, low-carb chip that you made from a vegetable. They’re worth the effort, especially once you find your preferred seasoning and nail the timing for your specific oven.