Preheat oven to 350 degrees F. Grease a loaf pan with baking spray. 1. Mix 2 cups of flour, 1/2 cup sugar, baking powder, and salt in one bowl. 2. In a separate bowl combine the sour cream, milk, vegetable oil and eggs. 3. Add the wet ingredients to the dry ingredients. Mix until just combined. 4. Gently toss 2 Tablespoons of flour with the frozen berries. Add them to the batter. 5. Pour the batter into the prepared pan. Bake for 55-60 minutes.