1 c. butter, softened
1 1/4 c. sugar
2 eggs
1 c. sour cream
1 tsp. vanilla
2 c. flour, unsifted
1 1/2 tsp. baking powder
1/2 tsp. baking soda
3/4 c. nuts, chopped
1/2 c. sugar
1 tsp. cinnamon
1 3/4 c. blueberries

Place butter, sugar, eggs, sour cream and vanilla in a large bowl. Mix at medium speed for 2 minutes. Add flour, baking powder and baking soda. Beat at low speed for 1 minute. Spread 1/2 the batter in a greased 13 x 9 baking pan. Mix nuts, 1/2 cup sugar and cinnamon. Sprinkle half mixture over batter. Drop remaining batter in mounds on top and spread. Bake at 350 degrees for 40 minutes or until done. If using frozen blueberries, increase baking time. Very good served with a clear lemon sauce.