In a medium bowl, whisk together the flour, baking soda, cinnamon, ginger, pumpkin pie spice, and salt. Set aside.
In a large mixing bowl, beat the softened butter, white sugar and dark brown sugar on medium-high speed until light and fluffy (about 2-3 minutes).
Mix in the molasses until fully incorporated, followed by the egg and vanilla extract. Beat until well combined.
Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined.
Cover the dough with plastic wrap and chill in the refrigerator for at least 2 hours (or up to overnight). This helps the cookies maintain their shape and ensures a chewy texture.
Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper or silicone baking mats.
Scoop 2-tablespoon portions of the dough and roll them into balls. Roll each ball generously in confectioners sugar to coat evenly and place them on the prepared baking sheets, spaced about 2 inches apart.
Bake in the preheated oven for 10-12 minutes, or until the tops of the cookies are set and crinkled but the centers are still soft.
Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.