Crush Oreos. Place the Oreos in a large plastic bag and use a rolling pin to crush them into tiny pieces.
Add to Mug. Add the Oreos and milk to a microwave safe mug.
Mix. Mix well.
Microwave. Microwave for about 90 seconds.
Serve. Let the mug cake cool slightly before topping with your favorite toppings and enjoy!
Notes
While this Oreo mug cake recipe is delicious as is, it can be made even better with flavored Oreos. Change it up by using Golden Oreos or your favorite Oreo flavor such as mint or chocolate!