Acciughe al verde is a typical appetizer from Piedmont. You can order them in the piole, the local osterias, where you can enjoy them along with other antipasti such as bagna cauda, meat tartare, and vitello tonnato, thin slices of veal blanketed in a tuna, boiled egg, and anchovy sauce.
To make it at home, choose good-quality salt-packed anchovies and rinse them thoroughly before filleting them. Let them marinate in the parsley sauce for at least 24 hours so that all the flavors can mingle. Start with a small quantity, as a bit of anchovy fillet goes a long way in terms of taste.