1 c. chopped nuts
1/2 c. sugar
1 tsp. cinnamon
1/2 lb. butter
3 eggs, 1 at a time
3 tsp. baking powder
1 1/2 tsp. vanilla
1/2 tsp. salt
1 c. sugar
2 1/2 c. flour
3/4 tsp. baking soda
1 c. sour cream

Mix together chopped nuts, 1/2 c. sugar and cinnamon to make topping. Separately, combine remaining ingredients to form a batter. Spread half of the batter in a 9 x 13 inch pan. Sprinkle half of the topping. Then repeat with remaining batter and topping.

Bake at 350°F for 40 to 45 minutes.