I love Mark Bittman! This comes from "How to Cook Everything." This was my first time making biscotti, and they came out absolutely wonderful -- this was such an easy recipe. Best of all, he gives it not as a recipe, but as a template; you can essentially add anything and make whatever kind of biscotti you want. The only near-problem I found is that the 30 minute initial cooking time was too long for me; the edges of my logs were quite brown. Next time I'll try for 25-28 minutes, and go a full 20 minutes for the second round in the oven. The serving size is based on half biscotti; I got 24 very large biscotti, and consider half a cookie a serving.