1 medium head Romanesco cauliflower (about 1 ½ lbs)
12 oz rigatoni, mezzi rigatoni, or ziti
4 anchovy fillets, packed in oil
3 Tbsp golden raisins, soaked in grappa, brought to a simmer for 5 minutes, then drained
3 garlic cloves, thinly sliced
6 Tbsp extra-virgin olive oil, divided
½ cup fresh parsley leaves, finely chopped
1 cup mollica (fresh coarse breadcrumbs, preferably from rustic bread)
Freshly ground black pepper