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Baked zucchini chips with sea salt turn a watery vegetable into a thin, crisp snack, no fryer needed, the same watery vegetable that gives zucchini cheddar muffins their moist crumb. The trick is a low oven and enough time for the water inside each slice to cook off completely.
I’ll be honest, my first batch came out limp. I skipped the salting step and rushed the bake. Every slice came out chewy instead of crisp.
Zucchini is mostly water. Salt it, drain it, and pat it dry before it ever touches the oven. That’s the difference between a floppy chip and one that snaps.
These bake low and slow, around 225°F/107°C for close to an hour and a half. Slow is what gets you the crunch without burning the edges.
They’re good for snacking straight off the pan, piled next to a sandwich, or crushed over a salad for texture.
Why You’ll Love This Recipe
- Uses just three ingredients you likely have on hand
- No fryer or special equipment beyond a mandoline
- A lighter swap for potato chips or store-bought veggie chips
- Good for snacking, salads, or piled next to a sandwich
Ingredient Notes
- zucchini: Look for firm, glossy zucchini. Smaller ones have fewer seeds and dry out faster in the oven.
- fine sea salt: Used to draw water out of the slices before baking. Kosher salt works the same way.
- olive oil: Keep the coating light. Too much oil traps steam and slows down crisping.
- flaky sea salt: For finishing after baking. Maldon works well, or use regular sea salt in a pinch.
Crispy Baked Zucchini Chips with Sea Salt
Ingredients
Method
- Wash and trim the ends off 2 large zucchini (about 600 g). Slice into rounds about 3 mm / 1/8 inch thick using a mandoline for even thickness.
- Spread the slices in a colander and toss with 1 tsp fine sea salt. Let sit for 20 to 30 minutes to draw out excess water.
- Pat each slice dry with paper towels, pressing firmly. This step matters, any leftover moisture is what keeps chips from crisping.
- Heat the oven to 225°F/107°C. Set wire racks inside 2 sheet pans (33 x 46 cm / 13 x 18 inch) so air can move under the chips.
- Arrange the zucchini slices in a single layer on the racks without overlapping. Brush both sides lightly with 2 tbsp olive oil.
- Bake for 45 minutes, then flip each slice and rotate the pans. Continue baking another 45 to 55 minutes, until the chips look dry, curl slightly at the edges, and feel crisp when tapped.
- Watch closely in the last 15 minutes, since thinner edge pieces crisp fast and can scorch before the centers finish drying.
- Pull any chips that finish early and let the rest keep baking until they match, crisp and golden at the edges.
- Remove from the oven and sprinkle immediately with 1/2 tsp flaky sea salt while the oil is still warm, so it sticks.
- Cool on the rack for 10 minutes. Chips crisp further as they cool. Serve right away or store once fully cooled.
Notes
- Salt and drain the zucchini before baking, this step makes or breaks the crunch.
- Use a mandoline for even 3 mm slices so chips finish baking at the same time.
- Don’t skip the wire rack, it lets air move under the slices as they dry.
- Pull edge pieces early if they crisp faster than the center slices.
- Salt the chips right after baking while the oil is still warm so it sticks.
Tips for Success
- Slice zucchini to an even 3 mm thickness with a mandoline so every chip bakes at the same rate.
- Salt the slices and let them drain 20 to 30 minutes to pull out excess water before baking.
- Pat each slice completely dry with a towel, since leftover moisture is the main reason chips turn chewy.
- Bake on a wire rack set over the sheet pan so air can move under the chips as they dry, the same trick that keeps oven-baked snacks like seaweed sesame rice crackers crisp.
- Watch the last 15 minutes closely, since thin edge pieces crisp faster and can scorch quickly.
Variations
- Toss the slices with garlic powder, onion powder, and cracked black pepper before baking for a savory version.
- Sprinkle grated parmesan over the chips in the last 10 minutes of baking for a crisp cheesy edge.
- Swap the finishing salt for smoked paprika and a pinch of chili flakes for a smoky, spicy chip.
Storage and Reheating
Store cooled zucchini chips in an airtight container at room temperature for 2 to 3 days. Skip the fridge, since the moisture in there softens them fast.
If they lose their crunch, spread them on a sheet pan and re-crisp in a 300°F/150°C oven for 5 to 8 minutes, checking often so they don’t scorch.
Freezing isn’t recommended here. The texture turns rubbery once thawed and won’t crisp back up the same way.
Serving Suggestions
Serve baked zucchini chips warm off the pan with tzatziki, ranch, or marinara for dipping. They’re good on their own too, straight from the container, much like snacking on cottage cheese cucumber boats without any fuss.
Pile them next to a sandwich in place of potato chips, or crush a handful over a green salad for crunch.
They also work scattered over roasted vegetables or grain bowls right before serving, adding texture without much extra work.
FAQ
Why are my baked zucchini chips soggy instead of crisp?
It’s usually leftover moisture. Zucchini holds a lot of water, and skipping the salting or drying step means that water steams the chips instead of drying them out. Check your oven temp too, since anything higher than 225°F/107°C can cook the outside before the center dries. Slow and dry is what gets a real crunch.
Can I use a dehydrator instead of the oven for zucchini chips?
Yes, a dehydrator works for this recipe. Set it to around 135°F/57°C and dehydrate the salted, dried slices for 6 to 8 hours until fully crisp. It takes longer than the oven method but gives a slightly chewier center. Skip the olive oil if you want a cleaner dehydrator result.
How do I store baked zucchini chips so they stay crunchy?
Keep them in an airtight container at room temperature for 2 to 3 days, not the fridge, since fridge moisture softens them fast. If they go soft, spread them on a pan and re-crisp in a 300°F/150°C oven for 5 to 8 minutes. Freezing isn’t a good option, the texture turns rubbery once thawed.
What goes well with baked zucchini chips besides a dip?
They’re good piled next to a sandwich in place of potato chips, or crushed over a green salad for crunch. A bowl of tzatziki, ranch, or marinara on the side turns them into a real snack plate. I also like them scattered over roasted vegetables for extra texture.
Are baked zucchini chips gluten free and low carb?
Yes, this recipe is naturally gluten free and low carb since it’s just zucchini, olive oil, and salt. Each serving comes in under 100 calories with only a few grams of carbs, mostly from the zucchini itself. It also works for vegan and dairy-free diets as written.
What’s the difference between baked zucchini chips and fried zucchini chips?
Baked chips use a low oven to slowly dry the zucchini out, giving a light, crisp texture with just a light coating of olive oil. Fried chips cook fast in hot oil, so they turn out heavier and greasier, though sometimes crunchier right away. Baking takes longer but means less oil and easier cleanup.
