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 color 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.