This recipe was featured in an email from the www.kingarthurflour.com website: "Here it is, the simplest, easiest biscotti recipe you'll ever follow. Biscotti bake twice rather than once, and thus take a bit longer start-to-finish than normal drop cookies. But the dough is put together exactly like drop cookie dough. And if your kitchen skills include shaping a meatloaf and slicing a loaf of bread, you've got what it takes to make delicious, gorgeous biscotti."
05Reduce the oven temperature to 325°F Wait another 5 minutes, then use a serrated knife to cut the log crosswise into 1⁄2" to 3⁄4" slices. Or cut the biscotti on the diagonal—for fewer, longer biscotti. As you’re slicing, be sure to cut straight up and down, perpendicular to the pan; if you cut unevenly, biscotti may be thicker at the top than the bottom, and they’ll topple over during their second bake.
06Set the biscotti on edge on the prepared baking sheet. Return the biscotti to the oven, and bake them for 25 to 30 minutes, till they feel very dry and are beginning to turn golden. They’ll still feel a tiny bit moist in the very center, if you break off a piece; but they’ll continue to dry out as they cool. Remove the biscotti from the oven, and transfer them to a rack to cool.
07Variations: Add up to 2 cups nuts, dried fruit (dried, not fresh), or chips to the dough, along with the flour. Adjust the spice to suit the add-in, if desired; e.g., add 1 teaspoon cinnamon with 1 cup chopped dried apple and 1 cup diced pecans. Or substitute hazelnut, butter-rum, or your favorite flavor for the vanilla. A classic Italian anise biscotti is made with 1/2 teaspoon anise extract (or 1/8 to 1/4 teaspoon anise oil, to taste), and 1 tablespoon fennel seeds.