# Directions:
01 - Place the Oreo cookies in a microwave-safe mug and crush them thoroughly with a fork until finely crumbled.
02 - Add the milk and mix until the cookies are fully soaked and form a thick paste.
03 - Stir in the flour, sugar if used, and baking powder until well incorporated.
04 - Incorporate the egg and vanilla extract if used, mixing until the batter is smooth and uniform.
05 - Microwave the mixture on high for 1 minute and 30 seconds. Verify doneness; the cake should be set yet moist. If necessary, continue microwaving in 10 to 20-second intervals.
06 - Allow to cool for 1 to 2 minutes before enjoying directly from the mug.