sour cream coffee cake

I got this recipe from Gregory's mom and boy is it good!

3/4 c. butter, softened

1 ½ c. sugar
3 eggs

1 ½ tsp. vanilla

3 c. flour

1 ½ tsp. baking powder

1 ½ tsp. soda

1/4 tsp. salt

1 ½ c. sour cream (I use either lite or fat free)

Filling: Mix ½ c. brown sugar, ½ c. finely chopped nuts, 1 Tbsp. Cinnamon.

Heat oven to 350̊. Grease tube pan or two 9x5 loaf pans. Combine butter, sugar, eggs and vanilla and beat for two minutes. Stir flour, baking powder, soda and salt together. Add half the dry ingredients to the butter mixture and mix, then add the sour cream and mix, then the rest of the dry ingredients and mix. Spread 1/3 of batter in pan(s) and sprinkle with 1/3 of filling. Repeat two times. Bake 60 minutes. Cool 10 minute in pans before removing.