Dry Ingredients-- In a separate bowl whisk the cake flour, baking powder, cinnamon, ginger, nutmeg and salt to combine, set aside for later.
Wet Ingredients- In a medium bowl, Combine the 1¼ cup pumpkin puree, ¼ cup milk, and vanilla. Set Aside for later.
Using an electric mixer (paddle attachment if using a stand mixer), mix the butter in your mixing bowl on medium speed until smooth. Next, gradually add the white and brown sugar and mix until light and fluffy for 4-5 minutes.
Add the eggs one at a time to the butter & sugar mixture, blending after each until the yolk is incorporated.
With the mixer on low speed, add the flour mixture alternately with the pumpkin puree mixture to the butter/sugar/egg mixture in the mixing bowl. Begin and end with the dry ingredients. I do three additions of dry, alternating with two additions of wet. Mix just until combined.
Scoop the Batter into the prepared bundt pan. Sprinkle with the pecan streusel topping and place in the oven.
Bake at 325 degrees for 1 hour and 5-10 minutes or until a toothpick comes out clean. *Baking times may vary depending on the type of pan, oven, etc. Peek in as the end time approaches and adjust as needed.
Allow to cool in the pan for 10 minutes before turning out.
The cake can be stored at room temperature in an airtight container, under a cake dome, or in a bakery box. This cake freezes nicely also. (See notes for details).