5Crush the Oreo biscuits into fine crumbs using a food processor or by placing them in a ziplock bag and crushing them with a rolling pin.
In a microwave-safe mug, combine the crushed Oreo crumbs with the baking powder.
Gradually add the milk to the mug, stirring continuously until you achieve a smooth batter.
Place the mug in the microwave and cook on high for about 1 to
5 minutes, or until the cake has risen and is cooked through.
Carefully remove the mug from the microwave (it will be hot) and let it cool for a minute or two before enjoying your Oreo Milk Mug Cake.