Everyone in Italy knows that a torta della nonna is a two-crusted pie filled with pastry cream and decorated with a few pine nuts sprinkled over the top. Lisa Contini Bonacossi, a nonna with thirteen grandchildren of her own, has dreamed up a dazzling alternative to tradition by adding ricotta to the filling to make it softer, putting the pine nuts inside instead of on the top, and flavoring it all with the Vin Santo that she makes in her vineyard. One taste and everyone wa