Preheat the oven to 350°F (175°C).
In a large bowl, whisk together flour, baking soda, spices, and salt.
In another bowl, cream together the butter, brown sugar, and granulated sugar until light and fluffy.
Add the egg and molasses, mixing until fully combined.
Gradually integrate the dry mixture into the wet ingredients until just combined.
Refrigerate the dough for at least 30 minutes to an hour.
Roll out the dough on a floured surface to desired thickness, then cut into shapes.
Place cookie shapes onto lined baking sheets, spacing them out.
Bake for about 10-12 minutes, or until the edges are firm but the centers are soft.
Allow cookies to cool on the baking sheet for a few minutes before transferring to wire racks.
