I found this is in a NZ magazine that had chef Genevieve McGough as a guest food writer. She says that cheesecake is believed to have originated in ancient Greece. The first recorded mention is that it was served to athletes during the first Olympic Games in 776BC !!! The two main techniques used these days are baked or gelatine based. This one is even easier as it does not use gelatine, does not require baking and only three ingredients are needed for the filling. I haven't made all the variations but I am sure they will be delicious. I have included 2 variations here and will post another separately. For the biscuit bases Digestive or plain sweet biscuits eg Nice or Super Wine biscuits seem to be most commonly used. However, try to match your base with filling eg,chocolate chip biscuits with chocolate filling. Chocolate covered biscuits as long as they don't have a chewy filling make a softer textured base that is easy to slice but as the packets weigh less, more than one is needed. NOTE:Cooking time is chill time.