In a large bowl, cream butter and brown sugar until light and fluffy, 5-7 minutes. Beat in the molasses, water and gingerroot. Combine the flour, cocoa, ginger, baking soda, cinnamon, nutmeg and cloves; gradually add to creamed mixture and mix well. Stir in chocolate. Cover and refrigerate until easy to handle, about 2 hours., Shape dough into 1-in. balls; roll in sugar. Place 2 in. apart on greased baking sheets. , Bake at 350° until tops begin to crack, 10-12 minutes. Cool for 2 minutes before removing to wire racks.