Dilute instant coffee powder with 3 tbsp warm water. Dip both sides of the Marie biscuits in this and layer them in a serving bowl. Repeat with the whole packet.
In a bowl, mix cocoa powder and cornflour. Make a paste using very little milk, without forming any lumps.
In a pan, boil the milk and add sugar. When the milk boils, add the above cocoa-cornflour paste and mix it in, stirring well. Mix thoroughly. It will start thickening immediately, keep stirring.
Switch off the flame when it thickens to a consistency that will just allow it to be poured.
While still hot, pour it over the biscuits covering all the biscuits.
Sprinkle cashews on top of it and refrigerate for 4-5 hours. Serve chilled!
If serving for kids use Milo instead of Coffee
Serving Size 6 Servings