Ingredients:
- Blackberries
- Sugar
- Flour
- Butter
- Eggs
- Vanilla extract
Instructions:
- Preheat oven to 350°F (175°C).
- In a large mixing bowl, cream together the butter and sugar until light and fluffy.
- Beat in the eggs one at a time, followed by the vanilla extract.
- In a separate bowl, whisk together the flour and blackberries.
- Gradually add the dry ingredients to the wet ingredients and mix until just combined.
- Pour the batter into a greased 8-inch square baking dish.
- Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean.
- Allow to cool completely before serving.