Preheat the oven at 425°F (220°C) and put some salted water to boil in a big pot to cook your gnocchi.
Prepare the sauce: mince the garlic with a garlic press and put it in a pot with abundant extra virgin olive oil. Turn the heat on until golden.
Cut the peeled tomatoes and pour them in. Add salt, pepper and the basil. Let the sauce cook for 10 minutes.
As soon as the salted water boils, pour in the gnocchi and wait until they float before draining them.
Add the gnocchi and the sauce to an oven pan, then half of the mozzarella and a couple of tablespoons of grated parmesan cheese.
Stir well, and add the remaining mozzarella and a layer of parmesan cheese on top before putting everything in the oven.
After approximately 10 minutes your gnocchi will have an inviting cheese crust.
Take your gnocchi alla Sorrentina out of the oven, serve them and enjoy!