Preheat oven to 350 degrees. Line cookie sheet with parchment paper.
- Whisk together olive oil, dark brown sugar, egg, and balsamic.
- In a separate bowl sift together flour, ginger, cinnamon, nutmeg, and salt.
- Combine sifted dry ingredients with oil mixture until it forms a ball. Extra flour may be needed.
- Roll dough into 1 inch balls. Roll cookie balls into granulated sugar and place on cookie sheet.
- Bake for 7-10 minutes.