Crumble the biscuits in your fingers, not too fine. Divide the crumbs between 6 wine glasses or small tumblers.

Place the condensed milk into a bowl and add the lemon juice. Stir together until the mixture has thickened. Whisk the cream cheese and yogurt in a small bowl until smooth then fold in the thickened condensed milk. Spoon the creamy mixture over the biscuits and chill for at least 30 minutes to 1 hour.

Chop the berries and mix with strawberry jam. Top the cheesecake with the fruit to serve.