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.
1/3 cup unsalted butter, melted, 1 cup granulated sugar, 3 large eggs, room temp, 1/4 cup real molasses
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.
3 1/4 cups all-purpose flour, 1/2 teaspoon salt, 1 Tablespoon baking powder, 2 Tablespoons ground ginger, 1 Tablespoon ground cinnamon, 2 teaspoons ground cloves, 1/2 teaspoon fresh ground nutmeg
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.
Optional: Melted white chocolate for drizzling