Steps to make the Pound Cake:
Preheat your oven to 325 degrees.
Combine the flour, baking powder, and salt and sit to the side. Then, using a hand or stand mixer, beat the butter, sugar and oil together on medium speed until light and fluffy (approximately 5 minutes).
Mix in the vanilla.
Add the eggs to the bowl one at a time, mixing until combined after each addition before adding the next egg.
Mix in the cinnamon.
Mix in the flour 1 c at a time, alternating with the buttermilk, beginning and ending with the flour.
Spray a 12-cup bundt pan with baking spray. Pour the batter into the pan and spread it evenly.
Place the cake in your preheated oven and bake for about an hour and 20-30 minutes.
Remove the cake from the oven and allow it to cool for 10-15 minutes before removing it from the pan.
Steps to make the glaze:
Add the condensed milk, softened butter, and vanilla extract into a medium size mixing bowl and blend together until smooth.
Add the powdered sugar and blend until incorporated. (Start on a low spend and increase the speed as the powdered sugar becomes blended.)
Mix in the cinnamon.
Mix in the milk until smooth. Pour the glaze over the cake as desired.
Serve and enjoy!