Preheat oven to 325 degrees
Cream the butter and sugar together until light a fluffy
Stir in the eggs one at a time while the mixer is running, making sure each egg incorporates well into the butter and flour
Scrape down the sides of the bowl to make sure everything combines well
In another bowl, combine the sour cream, pumpkin puree, and vanilla
In another bowl, whisk together the flour, baking soda, baking powder, and pumpkin pie spice
With the mixer on low, add in 1/3 of the flour, then 1/2 of the sour cream mixer, then another 1/3 of the flour, the last half of the sour cream mixture, then finish with the flour mixture
Careful not to over-mix, but make sure everything is well incorporated by scraping down the sides of the bowl to make sure everything is mixed in
Butter and flour a bundt pan by coating the pan with butter, then covering it with flour, and mixing it around the pan until it is evenly coated with flour, flip over and tap off the excess flour
***Note: I have also found that simply using cooking spray on my pan works well also. I have done both, and either one works. It will depend on your pan.
Bake at 325 degrees for 60-70 minutes, or until you can insert a toothpick in the center and it will come out clean
Let the poundcake cool for about 15 minutes in the pan, and then carefully flip it out onto a cooling rack
Once the pound cake cools completely, add the glaze
Measure the powdered sugar and pumpkin pie spice into a bowl
Pour in the vanilla, maple syrup, and milk while whisking to combine
Once thoroughly mixed, it can be drizzled over the scones; if you want more precise lines, pour the icing into the corner of a small ziplock bag
Cut the tip of the corner of the bag and drizzle the icing over the cooled pound cake
*You can also simply use a spoon to drizzle the icing over the pound cake
Note; if the glaze is too thin, add more powdered sugar, if it is too thick, add a touch more half and half