1 tablespoon cocoa powder
Preheat oven to 325° Fahrenheit. In a small bowl, dissolve baking soda in 1½ tablespoons boiling water; set aside.
Beat butter with brown sugar until combined. Add fresh ginger and mix on high until butter is light in color. Beat in molasses. In a medium bowl, sift together flour, cocoa, ground ginger, cinnamon, cloves, and nutmeg. Slowly add to butter mixture, with baking soda mixture, stirring until thoroughly combined.
Stir in chocolate morsels by hand. Scoop teaspoons of dough and roll into balls. Roll dough balls in ¼ cup granulated sugar and place 2-inches apart on baking sheets. Transfer to oven and bake until surfaces crack slightly, about 10-12 minutes. Let cool 5 minutes; transfer to a wire rack to cool completely.