In a food processor, finely grind almonds, sugar and chocolate; add cinnamon, cloves and egg whites, pulsing until mixture forms a dough.
Transfer dough to parchment paper sprinkled with sugar; sprinkle dough with more sugar, cover with another sheet of parchment and roll out ¼-inch (5 mm) thick.
Cut out cookies with your choice of cutters. Transfer to parchment paper-lined baking sheets and let dry 3 hours.
Preheat oven to 300°F (150°C) and bake 12‑15 minutes or until cookies have risen. Cool.