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

TOPPING:

3/4 c. white sugar
1/3 c. brown sugar
1 tsp. cinnamon

Cream butter and sugars. Beat in eggs and vanilla. Add sour cream. Add dry ingredients, mixing until well blended. Spread half of dough in a greased 9x13 inch pan. Sprinkle on half of the topping. Spoon on remaining dough and rest of topping. Bake at 325 degrees for 40 minutes.