Step 1Heat the oven to 350 degrees.
Step 2Beat together the oil, molasses, sugar and egg.
Step 3In a separate bowl, combine the flour, baking soda, ground ginger, cloves, cinnamon and salt. Stir the dry ingredients into the wet. Stir in the nuts, cherries and crystallized ginger.
Step 4Divide the dough in half and form each half into a log about 12 inches long and 2 inches wide. Press down on the dough to flatten slightly. Roll the logs in a little sugar. Place them on a nonstick baking sheet and bake in the upper third of the oven, 15 minutes.
Step 5Cool the logs 5 minutes, then cut them on the diagonal into 3/4-inch-thick slices. Lay the biscotti on 2 baking sheets and bake until they are still somewhat soft to the touch but dry, another 15 minutes.
Step 6Transfer the biscotti to a wire rack to cool. Store in an airtight container.