Powder the biscuits and add the melted butter. Mix well. Push down in a 7 inch spring-foam pan to cover the bottom. Refrigerate till use.
Preheat oven to 160 degrees.
Beat cream cheese and sugar till sugar is dissolved. Add the remaining ingredients and beat till well combined.
Pour the mixture into the pan. Cover the outside with aluminium foil and keep the pan in a bigger tray. Pour hot water halfway into the tray.
Bake in the oven for one hour. Switch off the oven and allow it to cool in the oven.
Once cooled, take out and keep it in the fridge for around 4 hours to set.
Top with lemon curd and serve.