The recipe requires some preparation with the stuffing, but this can be done a day ahead and stored in the fridge. The fresh tomatoes can be replaced with canned, peeled tomatoes, if you prefer a smoother sauce to accompany the squid. Take care to not overcook the squid, and not to overfill it with the stuffing as the flesh can break easily (although it is not so terrible if it does break and the filling leaks into the sauce – delicious).
Boil the potato until soft, drain, then mash with a potato masher or a fork. Set aside whilst preparing the rest of the ingredients.
Heat 3-4 tablespoons of olive oil on a pan over medium heat and cook half the garlic until golden. Add the tentacles, cook for 2-3 minutes, stirring constantly. Add 100 ml of white wine and allow to evaporate from the pan. Remove the tentacles and allow to drain, chop them into small pieces and set aside. Dispose of the garlic from pan, conserving the cooking juices for later.
In a large bowl, combine the potato mash, along with the finely chopped zucchini, 2 tablespoons of pecorino cheese, egg white, chopped parsley, and remaining crushed garlic, 1 tablespoon of breadcrumbs, capers and olives. Season with salt and pepper.
Carefully put some filling into each squid body, taking care not to overstuff. Seal the open ends of the squid with skewers.
Heat the pan previously used for cooking the tentacles and gently brown the stuffed squid for 2-3 minutes. Add 100 ml of white wine, then place the lid and cook for another 30 minutes, adding small amounts of warm water if necessary.
Remove lid, add the tomatoes, season with salt and pepper as required. Cook for a further 10 minutes without the lid. Add a good handful of fresh chopped parsley and serve.
