Grease and flour a tube pan. Preheat oven to 325 degrees F
Sprinkle the bottom of the prepared pan with ½ cup of chopped pecans.
In a separate bowl whisk the flour, cinnamon, nutmeg, ginger, and baking powder to combine, set aside for later.
Cream the butter with the paddle attachment in your mixer, gradually add the white and brown sugar and beat until light and fluffy 3 to 5 minutes.
Add the eggs one at a time blending after each to incorporate.
Add the vanilla extract.
While mixing at low speed, add the flour mixture alternately with the sour cream to the butter, sugar, & egg mixture. Begin and end with the dry ingredients. (I add the flour mixture three times and the sour cream twice). Mix just until incorporated.
Gently stir in ¾ cup of chopped pecans. Scoop the batter into the prepared bundt or tube pan.
Bake at 325 degrees for 70-74 minutes. Baking times may vary and so check on the cake as it nears the 1 hour mark. When an inserted toothpick comes out clean or with just a few moist crumbs attached, it is ready.
This makes approximately 8-8.5 cups of batter.
Allow to cool in the pan for about 10 minutes on a wire rack before turning it out.