Pre-heat the oven to 175°C.
Crush the biscuit with rolling pin. (or with a fist like Mr. 197)
Mix biscuit in melted butter.
Press the crumbs to the springform base and put it in the fridge until ready.
Melt the cream cheese over water bath or leave it at room temperature for a few hours until it's softened.
Add sugar, cream, egg, lemon juice, vanilla essence to the cream cheese. Mix gently until just combined. Over-mix will create too much air pockets.
Take out the biscuit base from the fridge, and pour the cream cheese mix on top carefully.
Bake it in the oven for 25mins.