Instructions
Preheat oven to 350°F. Coat a 8×12 baking dish liberally with non-stick spray. Set aside.
Rinse blackberries and pat dry. Set aside.
In a large bowl whisk together 1 cup of granulated sugar, flour, milk, and vanilla until smooth. Then whisk in the butter until combined.
Pour the batter into the prepared pan. Add the blackberries evenly on top of the batter. Sprinkle with the remaining 1/4 cup of granulated sugar.
Bake for 55-60 minutes until the top is golden and crackly.
Allow to cool slightly and serve warm with ice cream if desired.
