Combine molasses, sugar and butter in a saucepan. Cook until just melted, then set aside to cool.
Stir in eggs one at a time, beating well after each. Add half of flour, cinnamon, baking soda, nutmeg, ginger and cloves. When completely combined, stir in remaining flour. Cover and refrigerate for 1 hour.
After dough has chilled, preheat oven to 375°F.
Shape into 1-inch balls and place 1 inch apart on an ungreased baking sheet. Bake 7 minutes or until edges are lightly browned. Transfer to wire rack. Sprinkle with powdered sugar to decorate.