This is a pared-down version of a recipe that I came across in Nancy Jenkins’s informative book on Southern Italian food, “Cucina del Sole.” The dish is traditionally part of a meatless Christmas Eve dinner. If you can find freshly harvested walnuts, they’ll make this pasta even better.
03When the water comes to a boil, salt generously and add the spaghetti. Cook al dente, following the timing recommendations on the package but checking about a minute before the indicated time. When the pasta is almost done, add 1/4 cup of the pasta water to the pan with the walnuts and anchovies, and reheat over medium heat.
04When the pasta is ready, drain and toss with the walnut and anchovy mixture. Add the parsley, adjust salt if necessary and add pepper. Serve, passing the pecorino at the table.