Whip the cream for 10 mins or more till thick and creamy
Add the condensed milk and use more or less as suggested to your desired sweetness
Grind the biscuits till a fine texture, you may need more or less as suggested depending on your serving container
In your bowl add some custard, layer with the fine biscuit crumbs, another layer of cream and a final layer of biscuit crumbs
Chill well before serving