Combine crushed grahams and butter, press to a baking pan... then put it on freezer...

Grate cheese, pan on medium, mix in cream, then melt...

Using hand mixer mix together the melted cheese, white sugar, 2tbsp calamansi juice, 1tbsp vanilla extract. Pour mixture on baking pan.

Oven on... 180°C (350°F)... for 20 mins...

Cooldown the cake then for 10 mins then freezer... for 15mins...