Preheat the oven to 350 degrees F. Line two baking sheets with parchment paper and set aside.
In a medium-sized bowl, whisk together the flour, malted milk powder, baking soda, baking powder, and salt. Set aside.
In the bowl of a stand mixer, fitted with the paddle attachment, cream together the cream cheese and butter until combined and smooth (about 3 minutes on medium speed).
Add the brown sugar, egg, and vanilla extract and mix for another 3 minutes, or until light and fluffy.
In two batches, add the dry ingredients to the wet, and mix until just combined. Add the chopped Oreos and chocolate chips, mixing to distribute throughout.
Scoop the dough onto the prepared baking sheets in 2 tbs-sized balls of dough. Bake for 10-12 minutes, or until the edges start to set and brown.
Cool on the pan for 5 minutes before moving to a wire rack to finish cooling completely.