In a medium bowl, whisk together the all-purpose flour, ground ginger, ground cinnamon, baking soda, and salt. Set aside.
In a large bowl, use an electric mixer or hand whisk to cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.
Beat in the egg, molasses, and vanilla extract until well combined.
Gradually add the dry ingredient mixture to the wet ingredients, stirring until just combined. Do not overmix.
Cover the dough and chill in the refrigerator for at least 30 minutes.
Preheat the oven to 350°F (175°C). Line baking sheets with parchment paper or silicone baking mat. Pour 1/4 cup granulated sugar into a shallow bowl for rolling.
Scoop tablespoon-sized portions of dough and roll into smooth balls. Roll each ball generously in the granulated sugar until coated.
Place sugar-coated dough balls on prepared baking sheets, spacing about 2 inches apart. Bake for 10-12 minutes until puffed and cracked on top.
Transfer cookies to a cooling rack and let cool completely before enjoying.