For base: 1 1/3 cup oreo crumbs
50 gm butter
1 tbsp coco powder
For filling: 200 gm dark chocolate
2 1/2 cup Cream cheese
1 cup sugar
1 tbsp cornflour
3 egg yolks
100 gm sour cream
1/2 tsp coco powder
1 tbsp hot water
for sauce: 100 gm dark chocolate chips
100 gm heavy whipping cream
2 tsp sugar
Preheat the oven at 180 degrees C for 20 minutes.For base take crushed Oreo crumbs in the bowl and add coco powder and mix well then add melted 50 gm butter and mix, it should look like wet sand.
Take a springform pan and line it with parchment paper and grease with butter. Put the crumbs on the base and gently press on the bottom of the pan. Place the pan in the the freezer to firm up.
To make the filling, first melt 200 gm dark chocolate in the microwave and keep it aside to cool.
In a bowl take room temperature cream cheese and with help of hand mixer beat until soft and has no lumps, then add 1 cup sugar and cornflour and beat again so that sugar is well combined with cream cheese.
To cream cheese mix gradually add eggs one by one and then the egg yolks and finally the sour cream. Mix well.
In a small bowl dissolve one tsp of coco powder in one tbsp of hot water and add to the melted chocolate.Pour the melted chocolate mix in the cream cheese mix and with help of spatula mix the both until the cheesecake batter is smooth.
Remove the springform pan from the freezer and wrap it well with aluminium foil so that water does not seep in while baking in water bath.
Pour hot boiling water in a bigger pan and gently place the spring form pan in it. Carefully place the pan the preheated oven to bake for an hour.
Remove the spring form pan from the oven and peel the aluminium foil, and place it on cooling rack and after some time put it in the fridge to cool completely.
Before serving make chocolate sauce by gently heating the cream and then pour it over the chocolate chips and sugar. let the chocolate melt and then whisk well, Chocolate sauce is ready.
When the sauce is cool pour over the chocolate cheesecake and garnish with chocolate curls.