Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan or line it with parchment paper for easy removal.
In a medium bowl, whisk together the flour, baking powder, baking soda, ground ginger, cinnamon, nutmeg, cloves, and salt. Set aside.
In a large bowl, cream the softened butter and brown sugar together until light and fluffy.
Beat in the eggs one at a time, mixing well after each addition.
Stir in the molasses and orange zest until fully combined.
Gradually add the dry ingredient mixture to the wet ingredients, alternating with the buttermilk. Start and end with the flour mixture, mixing until just combined.
Pour the batter into the prepared cake pan, smoothing the top with a spatula.
Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
Allow the cake to cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
Once cooled, you may choose to dust the top with powdered sugar for a festive touch.
Notes
Serve slices with whipped cream and a sprinkle of ground ginger for added flair.