Preheat oven to 375F. Line a cookie sheet with parchment paper. Set aside.
In a large bowl, mix together the melted butter, sugar, eggs, and molasses, combining well. In a separate bowl, combine the remaining ingredients. Whisk dry ingredients together to incorporate. Mix dry ingredients together with butter mixture, and continue to work it until thick dough forms.
Divide dough in half. Shape each half into logs about 10x3 inches. Place on parchment lined cookie sheet. Pat each log down to about 1/2 inch thick.
Bake for 25 minutes. Remove from oven (still, keep the oven on,) and allow it to cool enough to handle.
Using a sharp bread knife, cut each log into 1/2 inch thick diagonal slices. Place each sliced biscotti on its side, and bake about 7-8 minutes. Turn each cookie over and bake another 7-8 minute or until cookies feel dry and are turning crispy.
Let cool completely at room temp. If desired, drizzle with melted white chocolate or your choice of icing.