
Nonstick cooking spray
½ cup whole-grain oat flour
½ cup all-purpose flour
2 tablespoons plus ⅓ cup granulated sugar, divided
1½ teaspoons baking powder
⅛ teaspoon salt
3 tablespoons butter
¼ cup peach nectar
2 tablespoons cornstarch
1 tablespoon lemon juice
2 16-ounce bags frozen sliced peaches
⅓ cup skim milk
Turbinado sugar, if desired