Separate and crush the Oreos

• Separate the Oreo biscuits from the filling and set the filling aside.
• Crush the biscuits into fine crumbs.

Mix the dry ingredients

• Add the baking powder to the crushed biscuits and mix together.

Make the batter

• Pour in the milk and add the reserved Oreo filling.
• Stir everything together until smooth.

Prepare the mold

• Grease and line a microwavable cake mold or similar dish.

Microwave the cake

• Pour the batter into the prepared mold.
• Microwave until set and springy to the touch.

Cool and serve

• Let the cake cool completely in the mold.
• Turn it upside down onto a plate.
• Eat as is or add a ganache topping.