In a bowl take 1 tbsp instant coffee.

Add ¼ cup of warm water. Stir very well. To make the shake, I used full cream milk. You can also use skimmed milk or low-fat milk. If using skimmed milk or low-fat milk, then just reduce the ¼ cup water to about 2 to 3 tbsp.

Add the coffee solution to a blender jar. For pics, I took coffee+warm water in a bowl. You can directly add both to a blender or mixer jar.

Add 3 to 4 tbsp sugar.

Blend for a minute or till the coffee solution becomes frothy and the color fades to a light brown shade.

Add 6 to 7 ice cubes. For a thick cold coffee, you can reduce the ice cubes from 2 to 4.

Pour 2 cups chilled milk (500 ml). Blend once more till everything is mixed well and you get a nice frothy layer on top.

Pour in glasses and Serve cold coffee immediately. the froth on top settles down and reduces with time. So serve immediately.