After having some pretty addicting biscotti from Costco, I decided to learn to make them myself, but I ended up with rock hard cookies two times. Instead of being crunchy and slightly crumbly, my biscotti were so hard you could break a tooth on them. On my first try, I used a recipe from Williams Sonoma, which I think had the wrong proportions of flour, leavening, and eggs. The end result was really dense, and you could hardly see any gas bubbles in the cookies. The second recipe was from Joy of Baking (http://www.joyofbaking.com/biscotti/AlmondBiscotti.html), which had a more airy crumb but still a bit too hard. I also was unable to shape the dough at all. It was so liquidy that I just poured it on the baking sheet. Surprisingly, I still ended up with the biscotti shape in the end. Maybe I need to refigerate the dough for an hour before trying to shape it?
But anyway, my main question is why my biscotti were so rock hard? I noticed that the biscotti I bought from Costco had butter in them. The recipes I used did not have butter. Is it something I’m doing wrong, or is it just the recipe?