First, crush the Oreo cookies into crumbs.
Take 3 scoops of the vanilla ice cream and put it in the blender.
Put the 220 mL of milk into the blender as well.
Here's the mix in a better perspective.
Turn the blender on until it looks like it is soft and creamy enough for your liking.
Lastly, pour the milkshake into a tall glass and enjoy!
Please note that I added some extra Oreo cookies because I wanted a more crunchy taste of the milkshake. That's why the color is so dark. ;)
Whipped cream is optional!