• Preheat oven to 350 degrees.
• Prep bundt cake pan with nonstick baking spray.
• Remove one tablespoon of the cake mix.
• Set aside the tablespoon of cake mix in a bowl.

Cake:

• In a mixing bowl add the cake mix, vanilla pudding, milk, eggs, sour cream butter. Use an electric mixer to combine all of the ingredients together.
• Add the blueberries in the bowl with the tablespoon of cake mix. Carefully stir the cake mix and blueberries together.
• Add the blueberries to the mixing bowl. Use a rubber spatula to gently blend the blueberries in with the cake batter.
• Spoon the cake batter into the prepared bundt pan. With a rubber spatula gently evenly spread out the top of the batter.
• Bake at 350 degrees for 35-40 minutes. (Insert a toothpick in the center of the cake. If the toothpick comes out with a few cake crumbs on it then it is done.)
• Take the cake out of the oven. Set aside for the cake to cool while still in the bundt pan for about 10 minutes.
• Flip the cake pan over and allow the cake to land on a cooling rack to cool completely.

Glaze:

• Add cream cheese and butter in a mixing bowl. Use an electric mixer to blend them together. Slowly mix in the powdered sugar and vanilla.
• Continue to mix until the glaze becomes smooth and creamy. Slowly pour the glaze over the cake.