Thin and Crisp Zucchini Scarpaccia (Tuscan Zucchini Flatbread)

Overflowing with garden zucchini? Bake this rustic Tuscan scarpaccia: a paper-thin zucchini “flatbread” with shatter-crisp edges and a soft, custardy center. It’s wildly snackable, naturally vegetarian, and comes together with pantry staples. Serve warm as an antipasto, slice into squares for happy hour, or pair with a salad for a light summer dinner.

Prep: 20 minutes (plus 30 minutes to drain zucchini)  |  Cook: 30 to 35 minutes  |  Yield: 1 sheet pan (4 to 6 appetizer servings)

Why This Recipe Matters

• Maximizes summer squash: Uses 2 pounds of zucchini with zero sogginess.
• Ultra-crisp, not greasy: A hot pan and thin batter create lacy, golden edges.
• Pared-back ingredients: Flour, water, olive oil, and zucchini—budget-friendly and simple.
• Flexible base: Keep it vegan and dairy-free, or add Parmesan and eggs for a richer version.

Ingredients

For one 13×18-inch rimmed baking sheet:

• 2 lb (900 g) zucchini or mixed summer squash, thinly sliced (2 mm)
• 1 small red onion or 2 shallots (100 g), thinly sliced
• 1.5 to 2 tsp kosher salt (for draining zucchini)
• 1 cup (240 ml) cool water, plus more as needed
• 1 cup (120 g) all-purpose flour
• 1/4 cup (30 g) fine cornmeal (optional, for extra crunch)
• 1 tsp baking powder (optional, for lighter lift)
• Freshly ground black pepper, to taste
• 1/4 to 1/2 tsp red pepper flakes (optional)
• 1/4 cup (60 ml) extra-virgin olive oil, divided
• 1/3 cup (30 g) finely grated Parmigiano Reggiano or Pecorino Romano (optional)
• 2 Tbsp chopped fresh herbs (basil, mint, parsley, or chives)
• Lemon zest and flaky salt, for finishing (optional)

Step-by-Step Instructions

1. Salt the zucchini: In a large bowl, toss zucchini with 1.5 to 2 tsp kosher salt. Let sit 30 minutes. Squeeze by handfuls to expel excess moisture. Reserve 2 to 4 Tbsp of the liquid; discard the rest. Do not rinse.
2. Preheat the pan: Place a 13×18-inch rimmed baking sheet on the middle rack. Preheat oven to 450°F (230°C). Five minutes before baking, carefully add 2 Tbsp olive oil to the hot pan and return it to the oven to heat.
3. Make the batter: In a bowl, whisk flour, cornmeal, and baking powder. Season with black pepper and red pepper flakes. Whisk in 1 cup water and 1 Tbsp olive oil until smooth and pourable—slightly thinner than pancake batter. If thick, whisk in 1 to 3 Tbsp more water or reserved zucchini liquid.
4. Combine: Fold the squeezed zucchini, onion, herbs, and half the cheese (if using) into the batter. It should look vegetable-heavy with just enough batter to coat.
5. Pan and spread: Carefully remove the hot, oiled sheet pan. Pour the mixture onto the pan and spread edge-to-edge in a thin, even layer. Sprinkle remaining cheese (if using) and drizzle 1 Tbsp olive oil over the top.
6. Bake: Bake 30 to 35 minutes, rotating the pan once, until deeply golden with crisp, lacy edges and a set center. For extra color, broil 1 to 2 minutes, watching closely.
7. Finish and serve: Cool 5 to 10 minutes. Loosen with a thin spatula, cut into squares, and finish with lemon zest and flaky salt if desired. Serve warm or at room temperature.

Pro Tips for Crispy Success

• Slice thin (2 mm) for even drying and faster crisping.
• Use a preheated metal sheet pan; it jump-starts browning.
• Spread thin—if your layer is thicker than 1/4 inch (6 mm), use two pans.
• Convection on? Reduce to 440°F (227°C) and start checking at 25 minutes.
• Reserve a little zucchini liquid to boost flavor in the batter—taste first for saltiness.

Common Mistakes to Avoid

• Skipping the salt-and-drain: Excess moisture = soggy center.
• Using glass or ceramic: Metal browns faster and crisper.
• Too much batter: Scarpaccia should be vegetable-forward, not bready.
• Under-oiling the pan: Oil is key to a lacy, fry-adjacent edge.
• Pulling too early: Wait for deep color; pale equals floppy.

Recommended Tools

• 13×18-inch rimmed baking sheet (aluminum)
• Mandoline or sharp chef’s knife
• Large mixing bowl and whisk
• Thin, flexible metal spatula
• Digital kitchen scale (for accuracy)

Variations and Swaps

• Cheesy-egg version: Whisk 2 large eggs into the batter and use 1/2 cup grated cheese for a more custardy center.
• Gluten-free: Swap 1:1 gluten-free flour; or use 1/2 chickpea flour + 1/2 rice flour for a farinata-like vibe.
• Spicy Calabrian: Add 1 Tbsp chopped Calabrian chiles and finish with lemon.
• Herb garden: Fold in dill, basil, or mint; add zucchini blossoms on top before baking.
• Mini scarpacce: Bake in two oiled 12-cup muffin tins for portable, extra-crisp edges (18–22 minutes).

FAQ

What is zucchini scarpaccia?

Scarpaccia is a rustic Tuscan “flatbread” that bakes into a thin, crisp-edged sheet packed with zucchini and onion. Unlike focaccia, it’s mostly vegetables bound by a light batter, producing lacy edges and a tender, custardy center. It’s traditionally served warm or at room temperature as an antipasto or snack.

How do I keep scarpaccia crisp?

Salt and drain the zucchini thoroughly, preheat a metal sheet pan, and spread the mixture in a very thin layer. Bake hot (450°F/230°C) until deeply golden, then rest 5–10 minutes so steam escapes. If needed, broil briefly to re-crisp the top and edges.

Can I make this gluten-free?

Yes. Use a cup-for-cup gluten-free flour blend, or try half chickpea flour and half white rice flour for a nutty, farinata-like result. Keep the batter thin and the layer shallow for crisp edges. As always, verify that baking powder and add-ins are certified gluten-free.

Can I use yellow squash or a mix of summer squash?

Absolutely. Yellow squash, pattypan, and zucchini all work well. Slice thinly and salt-drain the same way. Mixed varieties can add visual appeal and a broader flavor profile, but moisture management (salting and squeezing) remains the most important step for crisp results.

How should I store and reheat leftovers?

Cool completely, then refrigerate slices in an airtight container for up to 3 days. Re-crisp on a bare sheet pan at 425°F (220°C) for 8–12 minutes, or in a hot skillet with a film of oil. Avoid the microwave—it softens the edges and dulls the texture.

Do I need to peel or seed the zucchini?

No peeling or seeding is necessary. Thin slicing ensures tender results, and the skin adds color and structure. If using very large, late-season squash with developed seeds, scoop out any spongy core before slicing to prevent excess moisture and a mushy center.

Can I pan-fry scarpaccia instead of baking?

Yes—cook it like a giant pancake in a well-oiled, nonstick or cast-iron skillet over medium-high heat. Spread thinly, cook until deeply browned, then flip in sections or finish under the broiler. The sheet-pan method is easier for large batches and the crispiest edges.

Conclusion

When zucchini is everywhere, this Tuscan classic turns abundance into a craveable, crisp-edged bake you’ll make on repeat. Master the thin layer, hot pan, and proper draining, then riff with herbs, cheese, and spice. Slice, share, and watch the tray disappear.