1. Preheat your oven to 350 degrees.2. Prepare a 12 cup bundt cake pan by rubbing two tablespoons of butter across the entire interior. Top the butter with a light dusting of flour and set the pan aside.
5. In a large mixing bowl, beat the butter with a handheld mixer for two minutes until light and fluffy. Add the sugar and beat for another minute.6. Add the eggs and one teaspoon vanilla extract and mix until just combined.
7. Continue mixing while adding half of the dry mixture followed by the sour cream, then the remaining dry mixture and lastly the milk. Mix until just combined.
9. Transfer the batter to the prepared bundt cake pan and bake the cake for 45-55 minutes until golden brown and a toothpick inserted into the thickest part comes out clean. Transfer to a wire cooling rack to cool for 20-minutes then invert onto a cake stand or plate to cool completely.
10.Meanwhile, prepare the glaze by whisking together the powdered sugar, three tablespoons of milk, 1/2 teaspoon of vanilla extract, and the reserved raspberries. Set aside