250–300 g piece of pork skin
2 tablespoons extra-virgin olive oil
2 teaspoons sea salt
1 teaspoon chilli flakes
½ teaspoon fennel seeds
2 garlic cloves, chopped
1 bunch of cime di rapa, cavolo nero, chicory, spinach, rainbow chard or kale, leaves stripped and roughly chopped
large handful of grated Parmigiano Reggiano, plus extra to serve (optional)
zest of 1 lemon
FRESH PASTA FOR 4 orecchiette, cavatelli/malloreddus
DRIED PASTA FOR 4 gnocchetti sardi, rigatoni