Preheat oven to 350 degrees. Generously grease and flour a 10-inch bundt pan. Set aside.
In a large mixing bowl, beat butter and brown sugar with an electric mixer until light and fluffy - approximately 1 minute.
Add eggs, one at a time, beating after each addition until well combined. Scrape down the sides of the bowl with a spatula as needed.
Beat in molasses and buttermilk until combined. Set aside.
In a separate bowl, combine flour, ginger, cinnamon, nutmeg, cloves, baking soda, baking powder and salt. Whisk until combined.
Add dry ingredients to wet, gently beating on low speed just combined. Avoid overmixing.
Pour batter into prepared bundt pan then level the top with a spatula.
Bake 40 to 45 minutes. Cake is done when a tester inserted into the center of the cake comes out clean. Do not overbake.
Cool for 10 minutes in pan then turn out onto a wire rack to cool completely.
Top with a dusting of powdered sugar then slice and serve.
Cover leftovers tightly with plastic wrap and store at room temperature up to 3 days.