1/4 cup turbinado or other granulated sugar
1/4 cup extra-brut cocoa* or regular unsweetened cocoa
1 tablespoon peeled and grated fresh ginger
1/4 cup minced candied ginger
3/4 cup semisweet chocolate chips, or bittersweet chocolate chopped into small chunks
1 chilled log of butter shortbread cookie dough
*Extra-Brut cocoa, a specialty cocoa available at gourmet shops and baking supplies stores, makes extra-dark, extra-rich cakes, cookies, and more. If you can't find it, use any Dutch process cocoa.