Cinnamon Swirl Bundt

Ingredients:

3/4 cup butter
1 1/2 cups white sugar
3 eggs
1 teaspoon vanilla extract
1 cup sour cream
2 1/2 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon baking powder
1/2 cup chopped walnuts

Filling Ingredients:

2 Tablespoons ground cinnamon
1/2 cup brown sugar

Directions:

Preheat oven to 400 degrees F. Lightly grease one 10 inch bundt pan.Cream butter and 1 1/2 cups white sugar until well blended.Add eggs, mixing well after each addition. Stir in vanilla.Add sour cream, beat well.Add flour, baking soda, and baking powder and mix well. Stir in the chopped nuts.In a separate bowl, mix the brown sugar with the cinnamon.Pour half of the batter into the prepared pan. Sprinkle generously with the cinnamon sugar mixture. Cover with remaining cake batter.Bake at 400 degrees F for 8 minutes.Lower heat to 350 degrees F and bake for an additional 40 minutes.