This is the dessert I make when friends arrive in an hour and I have not planned anything. It sets in the fridge while we eat dinner.
Crush a packet of plain biscuits with melted butter and press them into a tin. Beat cream cheese with cream and a spoon of sugar until thick, then spread it over the base.
Chill for at least four hours. Top with whatever berries you have, and a little jam warmed with a splash of lemon juice if you want a glossy finish.
It keeps for three days, but I have never seen it last that long.