Even more than “cashew,” which sounds like a sneeze, “filbert” is the stupidest nut name ever. Fortunately, the NAAFRCP (National Association for the Advancement of Foods Resembling Chick Peas) promoted the more melodious “hazelnut.” Proving that everything sounds better in Italian, “nocciola” rightly implies dark depths of flavor. The hazelnut grows abundantly in the Piedmont Region, and became a cocoa substitute as Italy rebuilt after World War II. This explains why nocciola gelato has the smooth richness of chocolate, and why Nutella tastes like chocolate spread with some hazelnuts, when it’s really the other way around. This recipephany produces a classic, crunchy biscotti with a toastier, more mouthwatering flavor than the almond variety. Because…