Let's first make the brownie crust. Preheat oven to 180 degrees. Grease a 9 inch spring-foam pan.
Melt chocolate and butter using a double boiler. Cool slightly.
Combine sugar, egg and vanilla and whisk well.
Add the melted mixture and whisk. Add in the flour and salt and whisk till combined.
Pour into the pan and bake for 12 minutes till the top is firm and a skewer inserted comes out with some crumbs. Cool in pan completely. Our crust is ready.
Time for the cheesecake part! Preheat oven to 150 degrees.
Using an electric mixer, beat the cream cheese and sugar till fluffy. Add eggs, one at a time, beating well with each addition. Add in vanilla and finally the DDL and beat well. Pour over the prepared brownie base.
Bake for an hour at 150 degrees. Reduce the temperature to 120 degrees and bake for another 45 minutes.
Turn off the oven. Take out the pan and run a knife across the edges.
Return the pan to the oven and keep in the oven for a couple of hours to rest. Cover loosely with cling film and refrigerate overnight.
For the ganache, heat the cream till hot, not boiled. Pour the cream over the white chocolate and whisk till melted.
Allow to cool. Spread on the top. Drizzle the DDL all over. Allow to rest till thickened.
Slice, serve and enjoy!!!