Grab all your supplies
Fill a teaspoon of instant coffee (To taste) and pour into the cocktail shaker. (One teaspoon for a cup, and 1/2 for every cup after that). If the coffee is too weak, experiment until it's good.
Add the two teaspoons of sugar. You can use white or brown sugar, depends on what you have on hand or what you prefer. For every extra cup put 1/2 to a whole teaspoon of extra sugar.
(Optional) You can add drinking chocolate for an iced mocha instead.
Add the milk to the shaker
Close and shake! (Obviously don't close it like shown in the picture)
Open, pour, and ...
ENJOY! You could add ice if you wanted, but it dilutes it and it doesn't taste nice.