In a medium bowl, whisk together the brown sugar, granulated sugar, molasses, olive oil and egg until well-blended.
In another, larger bowl whisk together the flour, baking powder, baking soda, ginger, cinnamon, ground cloves, ground black pepper and salt.
Pour the wet ingredients into the flour mixture. Use a spatula to stir it around until the wet and dry ingredients are fully incorporated into a moist, uniform dough.
Divide the dough into 2 equal-sized balls, wrap the dough balls tightly in plastic wrap, and let the dough chill in the refrigerator for at least 2 hours.