Fresh Blackberry Bars

Directions

1. 1
   Preheat oven to 350 degrees.
2. 2
   Combine flour and brown sugar, cut in butter with a pastry blender until mixture resembles coarse meal.
3. 3
   Press 1 1/3 cups of mixture in bottom of an ungreased 8x8 inch square pan.
4. 4
   Combine remaining crumb mixture, sour cream, and next five ingredients.
5. 5
   Blend well.
6. 6
   Stir in blackberries.
7. 7
   Spoon over crust, spreading evenly.
8. 8
   Bake at 350 degrees for 35 minutes.
9. 9
   Let cool; cut into bars.
10. 10
    Sprinkle with powdered sugar.