Add the cold milk or water into the whipping cream powder and whip using a whisk or an electric hand mixer(in a high speed) until creamy and reaches stiff peaks.

Add in the condensed milk and vanilla, mix for a few seconds till it's well incorporated.

Divide it into three equal parts and store the first part in a plastic air tight container(that's good for freezing)

Gently fold in the crushed Oreo cookies into the two remaining parts.

Add a tablespoon of Cocoa powder to one part and pour into another plastic container.

And to the last part add in the finely chopped mint leaves and a little green food color, fold gently till it's well combined. Also pour into a plastic container.

Freeze for 5hrs or Overnight and then serve.