Sour Cream Coffee Cake

Batter:
cream together:
1 1/2 cups butter
3 cups sugar
3 eggs
1 1/2 cups sour cream
1 tsp vanilla

combine and add to above:
3 cups flour
1 1/2 tsp baking powder
1/4 tsp salt
Spoon half of the batter into a well greased bundt pan.

Filling:
combine
3/4 cup pecans, very coarsly chopped or halved.
3/4 cup brown sugar
2 tsps cinnamon

Sprinkle the filling mixture over the first half of batter in the bundt pan.
Spoon remaining batter over the top of the filling.
Bake at 350 degrees for 1 hour 15 minutes or until toothpick comes clean.