• Preheat oven to 375-degrees F. Prepare a 9" x 13" baking dish by spraying lightly with a cooking spray. Set aside.

For the berry filling:

• In a medium bowl, stir the sugar and cornstarch together. Set aside.
• Put the berries in a large sauce pot. Pour the sugar/cornstarch mixture over the berries and stir together well.
• Over medium heat, stirring frequently, cook the berry mixture until thickened. Spread evenly in prepared baking dish.

For the topping:

• In a large bowl, stir together the flour, baking powder, salt, sugar and baking soda.
• Cut in the cold butter until flour mixture forms small pea-size pieces. (This is not absolutely critical, but will make a better textured dough/batter.)
• In a small bowl, whisk together milk and egg. Stir in to dry ingredients just until blended. This makes a thick, sticky batter.
• Drop by spoonsful randomly on top of the berry mixture, leaving spaces between each spoonful. The batter will expand while cooking, giving a cobbled-like look as it bakes.
• Sprinkle the sprinkling sugar over the batter, if desired.
• Line a baking sheet with foil or parchment paper and put the dish of cobbler on it. This will catch any drips from the cobbler. Bake in the lower third of a 375-degree F. oven for 30-40 minutes or until the crust is deep golden and the berries are bubbling throughout.
• Allow to cool somewhat before serving. If desired, the cobbler can be served with vanilla ice cream, sweetened whipped cream, or Mixed Berry Cream Sauce.
• To store leftovers, put in an airtight container in the refrigerator.