Biscotti is actually an Italian cookie. I believe the name stems from the fact that it is twice baked. This process makes the cookies very crispy, a characteristic that makes them easy to store, easy to take along on a picnic, and easy to give as gifts. They last well for many days, and should they get a little soft, just put them back in the oven at 300F for a few minutes and they are as good as new.
To toast almonds: Place almonds on a baking tray. Bake at 350 F for 6-7 minutes.