Transfer the shake in serving glasses until they are half full.
For the mint shake
Add the ingredients in a blender and blend until smooth.
Top the chocolate shake with mint shake.
Top the glasses with whipped cream.
Keep a cherry on top.
Sprinkle some green sprinkles.
Use good quality vanilla ice cream to make this shake. It's all about 2 ingredients so use the best.You can increase the quantity of chocolate syrup in the bottom layer if you like it more chocolaty and sweet.Freezing the glasses after filling the chocolate layer will make the two layers stand out nicely. I missed doing that and my shakes were little mixed up.You can also keep a red cherry on top of the cream like how it's served at McDonald's. I did't had one so skipped it.Use mint extract and not peppermint. They are two quite different flavours. And be very careful while adding the extract. More than just a few drops can make the shake bitter.You can sprinkle some choco chips or top it with vanilla or chocolate ice cream instead of whipped cream.