Torta di Grano Saraceno

This cake comes from Valtellina, a picturesque valley in the foothills of the Alps bordering Switzerland. It’s too cold for normal wheat to grow there, but buckwheat grows well, and many Valtellina dishes, such as pizzoccheri (Buckwheat Pasta with Potato, Cabbage and Cheese) sciati (Cheese in Beer and Grappa Batter), and this delicious sponge-like cake, use this hardy grain. Toast the walnuts and pine n