use an electric beater and beat the cream cheese

preheat oven to 140 celcius

crush the tennis biscuits until they are fine, pour melted butter over the biscuits and make sure it is well mixed, press the biscuit mixture into a spring form tin and put in the fridge to set for 15 minutes

use an electric beater and cream the cream cheese and condensed milk together

add the juice of 4 lemons and vanilla essense and mix in well

pour the cream cheese mixture over the set biscuit mixture

place tin in the oven for 10 minutes on 140 celcius, turn down the heat and bake for another 10 minutes on 120 celcius

remove from oven and allow to cool, place in the fridge to set for 12 hours minimum