Preheat the oven to 400°F., and lightly grease a baking sheet (or line with parchment paper).
In a medium bowl, whisk together the dry ingredients (through salt).
In a small bowl, combine the milk, water and oil. Stir the milk mixture into the flour mixture until just combined. Gently stir in the blueberries.
Spoon the batter into 6 mounds (about ⅓ cup each) on the prepared baking sheet. Bake 15 to 18 minutes or until lightly browned. If desired, serve with fruit jam.