Crumble the biscuits and mix them with the melted butter, sugar and cocoa. Lay it out in a tray and leave to harden.
Beat the eggs with the sugar, vanilla and cream. Add the cottage cheese and mash.
Pour it over the biscuit layer and bake at 320°F (160 °C) with a fan.
Smear the ready cheesecake with strawberry jam and serve cooled.