Step 1

Preheat oven to 350 degrees.

Step 2

Grease bundt pan and set aside.

Step 3

Using a stand mixer or hand mixer, cream together the butter and sugar until light and fluffy.

Step 4

Add eggs and mix until smooth.

Step 5

Add flour, baking soda and baking powder alternately with sour cream.

Step 6

In a separate bowl, combine the cinnamon and sugar for the filling.

Step 7

Pour half of the cake batter into the bundt pan. Top with cinnamon sugar mixture and pour remaining batter on top.

Step 8

Bake at 350 degrees for 45-60 minutes.

Step 9

Let cool and remove from bundt pan.

Step 10

If desired, for a pretty presentation, top with powdered sugar by sifting it on top and fill the center with fresh berries.