Firstly, take a juice jar or a blending jar.
Into it add milk that has been boiled and chilled.
Add some ice cubes.
Add one full scoop of chocolate ice cream .
Add chocolate syrup into the jar.
Add cocoa powder into it.
Cover the lid of the jar.
Blend all the ingredients well for a minute.
Taste the shake and add sugar as per requirement.
Give a good blend for one more minute.
Take a glass and garnish the walls of the glass with chocolate syrup all over.
Pour the blended shake into the serving glass.
Garnish the shake with any of the chocolate toppings such as shredded chocolate, whipped cream, ice cream etc...
I have garnished using cocoa powder and the froth of the chocolate.
Serve chilled and its done!