1/2 c. butter
1 c. sugar
2 eggs
2 c. flour
1 tsp. baking soda
1 tsp. baking powder
1/2 tsp. salt
1 c. sour cream
1 tsp. vanilla

TOPPING:

1/2 c. brown sugar
1/2 c. sugar
1 tsp. cinnamon
1 c. pecans

Cream butter and sugar. Add eggs. Add flour, soda, baking powder, and salt. Mix. Add sour cream and vanilla. Mix well. In a separate bowl, combine topping ingredients. Place 1/2 the cake batter in a greased 9 x 13 inch pan; sprinkle on 1/2 the topping; pour remaining batter on top, then sprinkle remaining topping. Bake at 350 degrees for 35 to 40 minutes.