Cooking calzone in a pizza oven is one of those things that’s genuinely better than an oven-baked version — the intense heat creates a crisp, blistered shell while keeping the filling inside hot and gooey.
The Basic Method
Start with a standard pizza dough ball (250–280g). Stretch it to a circle about 10–12 inches, same as you would for a pizza. Add your filling to one half only, leaving a 2–3cm border clear around the edge. Fold the empty half over the filling side to create a half-moon shape. Press the edges firmly together, then fold and crimp the edge over itself to create a sealed border — this double-seal is important. A pinched seam that isn’t doubled over will burst open in the oven.
Place the calzone on a well-floured peel with semolina and launch it onto the hot stone. At 400–430°C it needs about 2–3 minutes, rotating once with a turning peel at the halfway point. It will puff up significantly as the air inside expands — this is normal. Remove when the outside is golden-brown with char spots.
Filling Ideas
The classic Neapolitan calzone filling is ricotta, salami or ham, and mozzarella. But the format works well with many combinations:
- Classic: Ricotta, diced ham (prosciutto cotto), fior di latte mozzarella, black pepper
- Spinach and ricotta: Wilted spinach (squeezed very dry), ricotta, mozzarella, nutmeg
- Sausage and pepper: Italian sausage (removed from casing and crumbled), roasted peppers, mozzarella, fennel seeds
- Four cheese: Mozzarella, ricotta, parmesan, and taleggio or gorgonzola for sharpness
- Mushroom: Sautéed mushrooms (cooked down and dried out beforehand), garlic, thyme, mozzarella
One important rule: all fillings should be pre-cooked or pre-wilted, and excess moisture removed. Raw vegetables release water during cooking and make the base soggy. Squeeze spinach in a tea towel, cook mushrooms until all liquid has evaporated, and pat mozzarella dry before using.
Sealing Technique — The Most Important Step
A burst calzone is the most common problem. The seal must be strong enough to hold the steam pressure that builds as the filling heats up. After pressing the edges together, use the fold-and-pinch method: lift the bottom edge up over the top edge and pinch it firmly every centimetre or so, working along the whole length. The finished edge should look like a rope or pasty crimp. Press down firmly — if in doubt, go round twice.
A few other sealing tips: don’t overfill (keep filling thin — about 1.5cm deep when spread), keep the 2–3cm border clean and dry (any sauce or oil on the edge prevents the dough from sticking to itself), and if you’re worried about the seal holding, you can score the top of the calzone with a sharp knife or scissors once — one small cut lets steam escape without bursting the whole seam.
Common Problems and Fixes
- Calzone bursts open: Seam wasn’t doubled and crimped firmly enough, or filling was too wet. Fold and press more firmly next time; dry your fillings more thoroughly.
- Base is raw or soggy: Stone not hot enough, or filling was too wet. Add another 5–10 minutes to preheating time and press moisture out of fillings.
- Outside burns before inside is cooked: Lower the flame slightly and move the calzone away from direct flame. Calzone takes longer than a pizza because the filling needs to heat through — it needs slightly less fire than a Neapolitan pizza.
- Difficult to launch off peel: Use plenty of semolina on the peel, work quickly after assembling, and give the peel a gentle shake before launching to confirm it slides freely. If it sticks, lift the edge and blow air underneath or add more flour.
Serving
Let the calzone rest for 2 minutes after it comes out of the oven — the filling will be at near-boiling temperature inside. Cut it in half with a sharp knife or pizza wheel and serve open, often with a small pot of tomato sauce on the side for dipping. The inside should be molten and steaming; the outside crisp and charred in patches like a good Neapolitan pizza base.
For the pizza dough used in this recipe, see our Neapolitan pizza dough guide. For peel recommendations, see our best pizza peel guide.
