Preheat your oven to 350 degrees F. and wash and dry your fruit. Peel and slice peaches and place in a large bowl with the blackberries. Add 1/3 cup sugar and toss to coat the fruit. Let set for at least 30 minutes.
In a separate bowl, combine all dry ingredients for the batter and give a good whisk to combine. Add the milk and melted butter and mix until well combined.
Spray a 9×13 baking dish with nonstick spray, and pour the batter into the bottom of the pan and level. Add the fruit to the top of the batter but do not mix together.
Bake in a preheated oven for 25-30 minutes or until golden brown and a toothpick comes out clean.
Serve warm with ice cream or whipped cream and enjoy!!