Grind the biscuits in a food chopper and then mix them with the melted butter.
Distribute the mixture along the bottom of a cake form and leave it in the fridge for 10-15 min. to solidify.
Distribute it on top of the biscuit layer and return it to the fridge for half an hour.
In the meantime, take out the jam you've picked so that it can loosen up at room temperature. Using a spoon, distribute it on top of the cottage cheese.
Finally, decorate the fruit cake with fruits of your choice and put it in the fridge for 5-6 hours before serving.