BLUEBERRY COFFEE CAKE

1/2 c Butter or margarine, softened
1 c Sugar
1 tsp Vanilla
3 Eggs
1 c Sour cream (light or regular)
2 c Flour
1 tsp Baking soda
1 tsp Salt
2 c Triple Delight blueberries
Filling:
1 c Brown sugar
1 c Chopped walnuts or pecans
1 tsp Cinnamon

In mixing bowl, beat margarine, sugar and vanilla until light and fluffy with electric mixer. Add eggs, one at a time, beating well after each addition. Beat in sour cream. Sift together flour, soda and salt. Add to creamed mixture and beat well. By hand, fold in blueberries. Spread half of mixture in greased 9 x 13-inch pan. Mix together the brown sugar, nuts and cinnamon. Sprinkle half of the brown sugar mixture over the batter. Dollop remaining batter on top; gently spread. Sprinkle remaining brown sugar mixture. Bake 45-50 minutes at 350 degrees.