Wicked Blueberry Coffee Cake

This "wicked good" recipe is from my friend, Sheri.
- Terry

INGREDIENTS

½ cup butter, room temperature
1 cup sugar
3 eggs, slightly beaten
½ tsp. vanilla
1 tsp. baking powder
1 tsp. baking soda
¼ tsp. salt

2 cups flour
1 cup sour cream
2 cups blueberries (fresh or frozen)

1 cup brown sugar
¼ cup butter, room temperature
¼ cup flour

INSTRUCTIONS

Cream ½ cup of butter and sugar. Add next five ingredients (through salt). Add the 2 cups of flour and sour cream alternately to egg mixture, mixing with a spoon. Fold in blueberries.

Pour mixture into a greased 9"x13" baking pan. In a separate bowl, cream brown sugar and remaining butter. Add flour to get a semi-dry mixture. Spread on top of batter. Bake in 350° oven for 30 minutes.