Thin and Crisp Zucchini Scarpaccia
This post may contain affiliate links. Please read my disclosure policy.
What to do with a boatload of zucchini? Scarpaccia, of course. This Italian flatbread emerges from the oven crisp at the edges, but soft and creamy inside. I truly could eat this entire pan alone in one sitting. I have faith you can, too 💪

Scarpaccia is a rustic “flatbread” originating from Tuscany, made mostly of zucchini and onions, bound together by a batter made of cornmeal, flour, grated parmesan, spices, and water. Spread onto a sheetpan, it bakes into a thin layer of utter goodness, irresistibly crisp at the edges, creamy in the center.
I find it nearly impossible to stop eating.
Like so many Italian classics, there are as many ways to make Scarpaccia as there are to make carbonara or any of the the other beloved pastas: some go heavy on the cornmeal, others on the polenta; some call for eggs, others for heaps of parmesan; some call for sautéing the vegetables, others for salting.
The key to success — defined by a crisp, not soggy texture — is to remove as much of the moisture from the zucchini as possible. This is achieved by either cooking it, or salting it. I prefer the salting method as I find it leads to a crisper product. What’s fun about this particular recipe is that after you remove as much water from the zucchini as you can, you save it and use it in the batter itself. Nothing goes to waste.
This salting, draining, and squeezing of the zucchini is the hardest part of the recipe. Everything else is child’s play: whisk together a handful of dry ingredients, add the zucchini water, fold in the vegetables, spread into a pan, bake until crisp.
Friends, I’ve never been to Tuscany, and I generally don’t have wanderlust, but I’m finding this dish is making me want to jump on a plane and never look back. Alas. Until that day arrives, I will be content with thinly slicing ALL the zucchini that crosses my path, cutting up a few tomatoes to serve alongside, drizzling them with the best olive oil I can find, and pouring myself a spritz to wash it all down. I hope you will join me. Cin cin! 🍹
How to Make Zucchini Scarpaccia, Step by Step
First, gather your ingredients:

Next, slice the zucchini into thin rounds. A mandoline makes quick work of this task. As you slice, transfer the zucchini to a colander set in a bowl…

… then season with 2 teaspoons of salt and toss with your hands to distibute.

After 30-60 minutes (or longer), the zucchini will soften as it releases its water into the bowl:

When you are ready to proceed, use your hands to press the zucchini into the colander to squeeze out as much water as possible into the bowl (you’re going to use the water). Transfer the zucchini to a clean towel. Then squeeze as much liquid out of the rounds as you can into the bowl — don’t be afraid to be aggressive.

This step is essential to ensuring the Scarpaccia bakes up crispy in the end.

Transfer the liquid to a liquid measure, then add enough water to get 250 grams total (a heaping cup):

Meanwhile, combine the dry ingredients in a large bowl:

Whisk until blended:

Add the zucchini water:

Then whisk until smooth:

Thinly slice the onion:

Then add it along with the zucchini to the bowl:

Stir with a spatula until blended, then pour the mixture out onto a buttered and cornmeal-dusted sheetpan:

Spread the mixture out into an even layer:

Then brush with olive oil and sprinkle with flaky sea salt:

Transfer to a 425ºF oven, and bake for 40-45 minutes or until browned to your liking:

Let cool in the pan for 5 minutes, then transfer to a cutting board and cut into 12 squares. Serve immediately or at room temperature. Heaven!

Thin and Crisp Zucchini Scarpaccia
- Total Time: 1 hour 45 minutes
- Yield: 12 Servings 1x
- Diet: Vegetarian
Description
What to do with a boatload of zucchini? Scarpaccia, of course. This Italian flatbread emerges from the oven crisp at the edges, but soft and creamy inside. I truly could eat this entire pan alone in one sitting. I have faith you can, too 💪
Recipe adapted from several recipes but with the most influence from Sammy Montgoms.
Notes:
- A mandoline is helpful here for slicing the zucchini and onions thinly. If you have a slicer attachment to a food processor, that will also work. You of course can use a knife, too.
- I love my 12×16-inch Lloyd Grandma Pan for this recipe, but any standard half sheet pan (13 x 18 inches) will work well, too.
- Salt: I always use Diamond Crystal brand. If you are using Morton or fine sea salt, use half as much by volume (or the same by weight). Also, if you are using less than 2 pounds of zucchini, use slightly less salt — I find a teaspoon of Diamond Crystal kosher salt per pound of zucchini works well.
Ingredients
- 2 lbs (907 grams) zucchini or other summer squash (about 4 small-medium)
- 2 teaspoons (7 grams) kosher salt, see notes above
- 3/4 cup (96 g) all-purpose flour
- 1/2 cup (60 g) cornmeal, plus more for sprinkling
- 1/2 cup packed (50 g) grated Parmigiana Reggiana (using the small-grate setting on a box grater)
- 1 tsp (4 g) garlic powder (salt-free)
- 1 tsp (4 g) silk chili, Aleppo pepper, or crushed red pepper flakes
- 1 small yellow or white onion (7 ounces | 200 grams pre-trimming), peeled and thinly sliced
- Butter for greasing the pan
- 2 tablespoons extra-virgin olive oil
- Flaky sea salt
Instructions
- Set a colander inside a large bowl.
- Using a mandoline or a knife, thinly slice the zucchini. The zucchini should be very thin but not paper thin — you should be able to fold each round in half, and it will bend. Transfer the zucchini to the colander, and season with the salt. Toss to distribute, then let it drain. Ideally, allow the zucchini to drain for at least one hour. I have gotten away with less time, and I have also allowed it to drain for over 4 hours.
- Once the zucchini has drained, use your hands to press it hard into the colander to squeeze out as much water as possible into the bowl (you’re going to use the water). Lay a large clean tea towel on a work surface. Transfer the zucchini to the towel. Wrap it up into a beggar’s purse, then wring it out over the bowl to extract as much water from the zucchini as possible — don’t be afraid to be aggressive. Transfer the liquid to a liquid measure, reserving the bowl. Add enough water to the liquid measure to get 1 heaping cup (250 grams). Set aside. Dry out the reserved bowl.
- Preheat the oven to 425ºF.
- In the reserved bowl, whisk together the flour, cornmeal, garlic powder, silk chili, and parmesan. Add the 1 cup (250 grams) of zucchini water to the bowl, and whisk until you have a pancake-like batter.
- Add the zucchini and sliced onion, and using a spatula, fold the vegetables into the batter — it will feel like mostly vegetables with just enough batter to coat them.
- Butter a 13×18-inch sheet pan or a 12×16-inch Grandma pan (see notes above) with softened butter. Sprinkle with 2 tablespoons cornmeal, then shake and rotate the pan to distribute it evenly.
- Spread the zucchini mixture into the pan, and use your hands to spread it evenly, pressing it down into a thin layer. Pour the two tablespoons of olive oil into a small dish, then brush it evenly over the top. Sprinkle with flaky sea salt.
- Transfer to the oven and bake for 40 to 45 minutes or until the edges are crisp. Let cool in the pan for 5 minutes, then transfer to a cutting board and cut into 12 squares.
- Serve immediately or at room temperature.
- Prep Time: 1 hour
- Cook Time: 45 minutes
- Category: Entrée
- Method: Baking
- Cuisine: Italian
This post may contain affiliate links. Please read my disclosure policy.
137 Comments on “Thin and Crisp Zucchini Scarpaccia”
I think this recipe might be a great way to use up some sourdough discard! Since the recipe calls for 3/4 of a cup o flour and one cup of the zucchini liquid, could I not substitute a cup and a half of discard. ( equals 3/4 of a cup of flour and 3/4 of a cup of water) and add a further quarter cup of zucchini liquid? Since I am sensitive to all-purpose flour unless it is fermented, this method might kill two birds with one stone: use up some discard, and prevent stomach discomfort. Are my calculations correct, do you think?
I do think this would be a great candidate for discard! Do you have a scale? Ideally, you would do something like: use 192 grams of discard, no ap flour, and then 154 grams more water. Here’s my math:
192 grams = 96 grams (the weight of the flour) x 2
154 grams = 250 grams (the total weight of the water) – 96
Of course, it will likely take some trial and error to get right.
Let me know if this makes sense!
Please report back! I would love to use starter for this.
Do you think semolina flour would be a good substitute for the cornmeal in the recipe? Thank you – looking forward to making this.
Yes, I think that will work well! Or polenta if you have it.
HI Ali!
Do you think chickpea flour would yield the same end result?
IF there’s any left, how would you store it?
Hi! Are you hoping to use it in place of the all-purpose flour? And are you trying to make it gluten-free? I can’t say because I haven’t tried, and I don’t trust the AI overviews when I google it. I was hoping to experiment with a gluten-free version before I posted the recipe, but I didn’t have a chance. I was going to try with rice flour first, then a gf flour mix (like Cup4Cup). I do have chickpea flour on hand, however, so maybe that will be next 🙂
Zucchini is draining. Can’t wait to try. Could you augment this with things like sundried tomatoes, Kalamata olives, or feta cheese? Or pepperoni? Thanks!
Yay! I hope it turned out well. And yes, I think small amounts of all of the ingredients you mention would be lovely! I would chop them finely, too.
Yes, replace for the apf. Like when you make socca .
Ok, got it. It’s worth a shot! I just don’t have that much experience using chickpea flour — funny, I bought the chickpea flour to make socca, but I didn’t have great success, so I have a few bags on hand. Again, if I make a good GF version, I will circle back here.
We all have questions! This looks delicious, Ali! Is the weight of the zucchini, before or after trimming off ends? Thank you for including the weight of the Parm-Reg. That’s very helpful.
Hi! It’s pre-trimming! 🙂
Thank you!
What substitute can be used in place of corn meal?
Hi! I think you could use polenta or semolina flour… do you have either of those on hand?
Sadly, I do not. What about Panko? Do you think it might burn?
Gosh, I’m not sure! The original recipe does call for 1/4 cup of breadcrumbs, but that’s in addition to the 1/2 cup of cornmeal.
Hello,
This looks amazing! What can I use instead of onions? I truly cannot stomach onions. Any suggestions would be helpful. If i don’t add onions will that alter the baking of the bread? Can I just add more cheese? Okay, waiting for your ideas.
Thanks, Cindy
Hi Cindy, Could you handle something like leeks? Or scallions? Or is everything in the onion family? If so, I think you could safely leave them out and maybe just use a little bit more zucchini.
I just made this since I accidentally ordered too many zuchini online. Delicious! I forgot to add the parmesan to the batter and so a re-do is in order. Definitely will make again!
Great to hear, Lisa! Thanks so much for writing and sharing your notes/experience 🙂
Going for Gluten Free option…. use cornmeal and gluten free measure for measure baking flour? excited about this!
Yes, exactly 🙂
This sounds delicious to me, except for the amount of onions. Is it possible to reduce or replace the onions with something else?
Sorry…. just read the comment above. I will try additional zucchini.
I also think thinly sliced potato would be delicious!!
Earlier this week our neighborhood rascally raccoons stripped our zucchini plants bare, which I found annoying, particularly since they didn’t finish what they stole but simply discarded them half-eaten. But, seeing this recipe, I am truly sad that I will have to wait till this Thursday’s farmers market to get to try this. Just when you think you have seen everything possible to do with zucchini, you surprise us with this recipe! Counting down to Thursday…
Such rascals! I’m sorry to read this. Thursday will be here soon. I hope you love it 🙂
While I enjoy scarpaccia and it’s a great way to use excess sqaush, after it sits to cool there is nothing crispy about it, and don’t know why it is advertised everywhere as such.
I popped the leftovers in the air fryer, and it crisped right up. I think a toaster-oven would work the same.
The taster oven works well for me! Great to hear about the air fryer.
Sorry but the serving size is all wrong. It only serves 1 or 2. I literally ate half the pan and had to force myself to stop, it was that good! I went to the farmer’s market this morning and got zucchini and onion. I followed the directions to a “T” including using a mandoline and my Lloyd grandma pan. This was my dinner along with sliced heirloom tomatoes from my garden and a glass of rose wine. Thanks Ali for another great recipe!
Nancy!! I am so happy to read all of this. I will edit the serving size 🙂 I’m with you. This serves ONE PERSON. Your dinner sounds so, so lovely. My idea of heaven. Thank you for writing 🙂
This is delicious. I seriously love it.
Great to hear, Melanie! Thanks so much for writing 🙂
Hi there! I have a plethora of zucchini and thought I would try this recipe. Made as written – it was ok – but seemed a little bland. I used fresh Aleppo pepper. Not sure it turned out like it was supposed to? Almost seemed too creamy(unbaked) – and I baked it for 50+ minutes.
On a bright note- I just made your peach galette for the 3rd time in as many weeks – just perfection! Thank you for all your recipes!
Darn! I wonder if it just needed more time — I do encourage relying on the visual cues rather than the timing… was it browned on top? What material is your pan? I’m also wondering, as I mentioned to another commenter below, if a little salt in the batter would help. I think even 1/4 teaspoon might make a difference.
Great to hear about the peach galette!!
I just made this tonight and it is absolutely delicious! I did not have any parmesan on hand but had aged cheddar (Cougar Gold, from the PNW) that had hardened and it was so, so good. I also had to squeeze the zucchini again right before adding to the batter because it had released more water while it was sitting. Thanks for sharing this easy, delicious recipe!
So nice to read this, Paula!! Aged cheddar sounds lovely. Thanks so much for writing and sharing your notes 🙂
I made this recipe exactly as you suggested and it was incredibly delicious! My new favorite way to use up a bunch of zucchini and be excited to eat it! I will for sure be making this for years to come 🙂 Thank you!
Great to hear, Erica! I feel the same way… so happy this one is the mix of arsenal of zucchini recipes to turn to this time of year 🙂
Does it work with yellow squash?
Yes!
Made this last night and my husband said to “put it on repeat!” I salted my zucchini in the morning and let it drain all afternoon. I was surprised at the amount of water that came out of it! The only thing I may do differently next time is add a little salt to the batter. Thanks for the recipe – it was fun to make something different!
Great to hear, Steph! And I hear you: I made several versions where I added salt to the batter — one with 1 teaspoon (way too salty), one with half a teaspoon (also slightly salty but in that version I used Pecorino in place of the parmesan, which likely contributed to the saltiness), so when I published the recipe, I figured people could always add more sea salt to taste post baking… But I am going to make another one with 1/4 teaspoon salt — that might be perfect 🙂
Ali- I made this exactly per recipe cept that my zucchini were on the thinner side. Drained for 3 hours. Did not need to add any water and had excess zuke water to toss. Flavor was good, but not a rave. It almost was better flavor at room temperature.
However, that said, i agree w commenter about crispness. It was completely gone after five minute cool, so “crispy” in the title is misleading. Sure, it can be recrisped, perhaps, but it disappointed every eater who was expecting “crispy”, not floppy, flatbread.
For me, this was the first of the many many recipes of yours that failed to be fab.
Bummer to hear this! I wish I could find a way to make it work for you, because I truly find it irresistible. Did you weigh the zucchini before you sliced it? I’m worried it was maybe too much zucchini given all the water it produced upon salting. It definitely gets soft after several hours, but I find the crispness lasts much longer than 5 minutes. I will try to create a video this week… I posted a Reel on IG, but I’ll try to make a youtube video for here.
Ali- The zuke weight was correct, but the only diff I can think of was how thin I sliced them and that meant more surface area? I only used 1 c of the liquid and batter barely covered the slices, as directed. If it wasn’t the thinness, perhaps 5 more minutes in the oven was needed. Although edges were nicely crisped. When you make it, is the crust crisp across entire bottom?
Ok, interesting! I think the thinness of the zucchini shouldn’t matter too much. It probably was just a matter of time. What material is your sheet pan? Regarding crispness of mine, I would say the outer pieces are very crisp, while the inner ones are softer (but not soggy).
I used an old fat daddio ~12 x16 sheet pan, about 1 inch longer than my Lloyd’s pan used for your grandma pizzas.
Plus while old, it is not as dark as Lloyd’s plan and perhaps a wee bit thicker too.
Maybe just the combo of these small things…
Thank you so much Ali. You are a marvel w replies and enthusiasm and jugglements.
Thank you for your kind words 🙂 I love Fat Daddio pans, so again, I can’t imagine that is the issue, though I do love my Lloyd grandma pan for both pizzas and this scarpaccia for the crisper crust it yields (compared to my standard Nordicware sheetpan). If you were willing to give it another go, I would love to know how it turned out in your Lloyd pan with a slightly longer bake. But I also understand if you are not 🙂
Can you use some other cheese than Parmesan?
I think Pecorino Romano would be great. Or Manchego. Or honestly, whatevery you have on hand and like 🙂
This was excellent! I only had an hour to let the zucchini drain but I squeezed it out really well and it turned out great…I brought it to a family dinner and nothing was left. I’m looking forward to making it again and adding fresh basil. Thank you for the wonderful recipe 🙂
Great to hear, Erin! Thanks so much for writing. Fresh basil will be lovely.
Looks SO delicious and I really tried to follow it precisely but mine just did not come out well. Most of it was soggy, some gummy and also very hard to get out of the pan. Worth trying again!
Hi! Questions: did you use a scale to measure the zucchini? Do you feel like you extracted enough liquid from the zucchini? What material was your sheet pan? And was it evenly browned across the surface when you removed it from the oven?
So delicious! And fun to make and eat. Thank you for this recipe. Mine was too salty – taste as you sprinkle the flaky salt.
Great to hear, Sarah! The saltiness issue is so tricky! In my experiments, I found it was either over-salted or underseasoned… see some of my comments above. Glad it was a success anyway 🙂
Oops, one more question. I used the mandoline on the zucchini and could not decide what the best thickness should be. The 1/16th inch seemed maybe too thin, but the 1/8 inch seemed too thick, so I used a little of both. As you instructed, with 1/8th inch you could bend it easily. Thoughts let us know! Thanks Ali!
Hi! I actually think something right in between 1/16 and 1/8 is perfect. Mine are probably closer to the 1/16th thickness.
Since I see comments about not retaining crispness, I’m wondering if I could make this ahead to serve for a lunch side – just reheat in a toaster oven to crisp it up? Any body try leftovers of this recipe?
Hi Patti! Do you have a baking steel or pizza stone? Someone emailed me saying that she crisps hers up by reheating it on her Baking Steel — she uses parchment paper, preheats her steel @ 425, and slides the whole thing on the steel to reheat.
I’m going to make this soon but I think it really needs some garlic!
Can I line the half sheet with parchment or foil? For easier clean up?
I would do parchment!
I tried a gluten free version this evening, using a 1 to 1 gf flour. I used corn flour because I was out of cornmeal. I weighed the zucchini and liquid. It was delicious! Next time I might try with rice flour and the cornmeal. As others have written, the edges were nice and crisp but the center was a bit doughy. Hoping that next time it turns out more uniformly crisp. Thank you for this recipe!
Great to hear, Jennifer! Thanks so much for writing and sharing your gluten-free notes — so helpful as many others are looking for a gf version.
Hi Ali,
Is there a less spicy alternative for the chili. My wife is sensitive to spicy foods. Can’t wait to try this recipe with sourdough discard.
Also, any nutritional info for this recipe?
Thanks!
Cheers,
Ron
Hi! I would just omit the chili. It’s not necessary. Unfortunately, no nutritional info… you can enter it into My Fitness Pal dot Com.
Made this tonight. Perfect with those crispy/chewy edges… will definitely make again.
Great to hear, Laura! Thank you for writing 🙂