Melt Ingredient A over a double boiler. Fold in Ingredient B and mix well.
Make the meringue by whisking Ingredient C until foamy. You can beat it with a mixer. Add in Ingredient D and whisk until soft peaks form.
Take 1/3 meringue and fold into the cheese mixture, then fold in another 1/3 of the meringue. After incorporated, pour the batter back to the remaining 1/3 meringue and fold. FOLD GENTLY. Pour the mixture into a 8-inch round cake pan (line the bottom and sides of the pan with baking paper).
Bake cheesecake in a water bath for 1 hr 10 minutes or until set and golden brown at 160C.