These delicate, crunchy biscotti are wheat- and gluten-free. Be careful to let the baked cake cool after the first baking or it will be difficult to slice.
Set a rack in the middle level of the oven and preheat to 350 degrees.
In the work bowl of a food processor fitted with the steel blade, place 1 cup of the almonds and pulse repeatedly until finely ground. Transfer to a bowl with the remaining whole al