Gnocchi Sorrentina
The dish in context
Gnocchi alla Sorrentina is tied to Sorrento and the wider Campanian tomato-and-mozzarella grammar: potato gnocchi, tomato sauce, fior di latte or buffalo mozzarella, Parmigiano, basil, then a short bake. Italian sources often describe it as served in a small terracotta dish, the pignatiello, which holds heat and gives the top a stronger baked edge. The dish is a primo in Italy, though outside Italy it often lands as a full vegetarian main. The core is stable across sources; the arguments are around onion, garlic, fresh tomatoes versus passata, and whether the gnocchi must be homemade. For this version, the sauce stays lean and bright, and the gnocchi are made from potato because packaged gnocchi turn the bake dense before the cheese has time to melt properly.
Method 10 steps · 115 min
Bake the potatoes dry
Heat the oven to 200°C. Prick the potatoes, set them directly on the rack, and bake until a skewer slides through the center with no resistance, 50-65 minutes. Split them open immediately so steam escapes.
Start the tomato sauce
Warm the olive oil in a wide pan over medium-low heat. Add the crushed garlic and cook until pale gold at the edges, 1-2 minutes; remove the garlic before it browns. Add the crushed tomatoes, salt, and half the basil, then simmer until slightly thickened but still loose, 20-25 minutes.
Rice the potatoes
Scoop the hot potato flesh from the skins and pass it through a ricer onto a clean work surface. Spread it into a thin layer and let it steam off for 5 minutes, until warm rather than hot.
Mix the gnocchi dough
Sprinkle the potato with the salt and about 190 g of the flour. Add the egg yolk, if using. Fold and press with a bench scraper until the dough comes together; add the remaining flour only if it sticks heavily to the work surface.
Shape the gnocchi
Divide the dough into 4 pieces. Roll each piece into a rope about 2 cm thick, cut into 2 cm pillows, and roll each piece over a fork or gnocchi board to make ridges. Dust lightly with flour and keep in a single layer.
Drain the mozzarella
Set the mozzarella cubes on a towel or in a sieve while the water comes to a boil. If using buffalo mozzarella, give it at least 20 minutes and blot the surface.
Boil the gnocchi
Bring a large pot of salted water to a strong simmer, not a violent boil. Cook the gnocchi in batches until they float, then give them 20-30 seconds more and lift them out with a spider. Transfer directly into the tomato sauce.
Dress without crushing
Fold the gnocchi through the sauce over low heat for 30-60 seconds, using a wide spoon. The sauce should coat, not drown; hold back a little sauce if the pan looks soupy.
Build the baking dish
Heat the oven to 230°C, or set the broiler/grill to high if the gnocchi and sauce are still hot. Spoon half the sauced gnocchi into a shallow baking dish, scatter over half the mozzarella and a third of the Parmigiano, then repeat. Finish with the remaining Parmigiano.
Bake hot and short
Bake until the mozzarella has melted into white pools and the Parmigiano is lightly golden at the edges, 8-12 minutes. Rest 5 minutes, then finish with the remaining fresh basil.
Common mistakes
- Using low-moisture block mozzarella. It melts into uniform rubbery strands; Sorrentina needs fresh mozzarella pockets.
- Boiling the potatoes for gnocchi. Extra water forces extra flour, and extra flour makes dense dumplings.
- Overworking the dough. Elastic dough means gluten has developed; the finished gnocchi will chew like pasta offcuts.
- Making the tomato sauce thick like pizza sauce. Gnocchi need a loose coating because the oven and Parmigiano tighten the final texture.
- Baking too long. Once the cheese melts and the edges color, stop; longer baking makes the gnocchi swell, collapse, and absorb too much sauce.
- Adding basil before a long bake. The aroma disappears and the leaves turn dark.
What does not belong
- Cream does not belong in gnocchi alla Sorrentina. The richness comes from fresh mozzarella and Parmigiano.
- Dried oregano does not belong in this version. It makes the sauce read like jarred pasta sauce or pizza topping.
- Low-moisture mozzarella does not belong. Use fresh fior di latte or well-drained mozzarella di bufala.
- Meat ragù does not belong. That becomes a different baked gnocchi dish.
- A heavy onion base does not belong. Some household versions use onion, but it should not dominate the tomato, basil, and milk profile.
- Breadcrumb topping does not belong. Parmigiano gives the baked edge; breadcrumbs turn it into a gratin.