Preheat the oven to 350°F (175°C).

In a mixing bowl, whisk together the flour, baking powder, ginger, cinnamon, nutmeg, and salt.

In another bowl, cream the softened butter, granulated sugar, and brown sugar until light and fluffy.

Add the egg and molasses to the butter mixture and mix until combined.

Gradually add the dry ingredients to the wet ingredients and mix until a dough forms.

Using a cookie scoop, form dough into 1-inch balls and place them on a baking sheet lined with parchment paper.

Bake in the preheated oven for 12-15 minutes, or until the edges are lightly golden.

Remove from the oven and let cool on the baking sheet for 5 minutes.

While the cookies are still warm, roll them in powdered sugar until fully coated.

Allow the cookies to cool completely on a wire rack.