Wicked Blueberry Coffee Cake

From murder on the rocks by karen macinerney. I haven't tried this yet but it sounds good.

Cream the 1 / 2 cup of butter and 1 cup of white sugar.

Add the eggs , vanilla , baking powder , baking soda , and salt.

Add the 2 cups of flour and sour cream alternately to egg mixture , mixing with a spoon.

Fold in the blueberries.

Pour mixture into a greased 9 x 13 baking pan.

In a seperate bowl , cream brown sugar and remaining 1 / 4 cup butter.

Add flour to get a semi-dry mixture.

Spread on top of batter.

Bake in 350 degree oven for 30 minutes.

butter, white sugar, eggs, vanilla, baking powder, baking soda, salt, flour, sour cream, blueberries, brown sugar