Coarsely crush the Oreos.
Mix whole wheat flour, baking powder, and salt in a bowl.
Add sugar and butter and mix evenly by hand.
Add milk and egg, then knead the dough.
Gently mix in the Oreo pieces and chocolate chips.
Shape the dough into a round form.
Bake at 180°C (356°F) for 20 to 25 minutes.