In a large mixing bowl, whip the butter and sugars together on medium-high for 3 to 5 minutes or until nice and fluffy.
Add the eggs and vanilla extract and mix until all is combined.
Add in the spices ground ginger, ground cinnamon, ground nutmeg, and salt. Mix until the spices are all incorporated.
Add the molasses and mix well.
In a separate mixing bowl, combine the unbleached flour, baking soda, and baking powder. Whisk together.
Add half of the flour mixture to the wet ingredients and blend. Add all of the milk. At this stage, it will be a very liquid batter. Add the remainder of the flour mixture. Mix on low until the flour is combined so that it doesn't go everywhere. Combine mixing until the flour is thoroughly incorporated.
Once you have a nice light brown batter with no more dry flour visible, pour the batter into the greased Bundt cake pan and spread it evenly.
Bake in preheated oven for 48 to 50 minutes. Turn the pan halfway through baking and check the cake towards the end to assure it doesn't overbake. It's done when a toothpick inserted comes out clean.
Let the cake cool in the pan on a cooling rack for 10 minutes. Invert the cake onto the cooling rack and let it cool completely.
In a mixing bowl combine butter, powdered sugar, maple syrup, salt, and vanilla extract. Mix until all combined. If you want s thinner glaze you can add more maple syrup or water (1 teaspoon at a time).
Grease Bundt Pan methods - I like using a pastry brush and brush butter all over the inside, then take a little bit of flour, about 2 tablespoons, and sprinkle over the butter. Gently tap and rotate the pan so the flour will stick over the butter.) My second favorite way to grease a Bundt cake pan is I use this recipe from I Am Baker (homemade pan Release: https://iambaker.net/homemade-pan-release-baking-spray/.
This recipe was calculated using the exact brands and measurements I used to make this recipe. If you are following a strict diet please note changing anything will cause the nutritional info to change. My calculations are intended as a guide only.