Making coffee solution
in a small bowl, take 1.5 tbsp instant coffee.

Add ¼ cup warm or slightly hot water.
mix very well with a spoon.

Making cold coffee with ice cream
now pour this mixture in a blender jar.
add 4 tbsp sugar. you can add sugar as per your taste.

Blend for a minute or till the coffee solution becomes frothy and the colour lightens a bit.

Now add 4 to 5 small ice cubes.
add 1 or 2 vanilla ice cream scoops.
pour 2.5 cups chilled milk.

Blend once more till everything is mixed well and you get a nice froth on top.
pour cold coffee in glasses.

Keep some space on top for the ice cream scoops.

Now place 1 or 2 ice cream scoops.
serve coffee milkshake with ice cream immediately.