01 -
Preheat oven to 160°C. Combine graham cracker crumbs, sugar, and melted butter in a bowl. Press firmly into the base of a greased 23 cm springform pan. Bake for 8 minutes, then cool completely.
02 -
Beat softened cream cheese and sugar until smooth. Add eggs one at a time, beating after each addition. Mix in vanilla extract and sour cream just until combined. Pour over cooled crust and smooth the top.
03 -
Bake at 160°C for 50–55 minutes, until center is slightly set. Turn off oven, crack door, and let cheesecake cool inside for 1 hour. Chill in refrigerator for at least 4 hours or overnight.
04 -
Preheat oven to 175°C. Grease and flour a 23 cm round cake pan. Whisk flour, baking powder, and salt. In another bowl, beat eggs and sugar until thick and pale. Gently fold dry mixture into wet. Heat milk and butter just to melt, stir in with vanilla. Pour into pan and bake 20–22 minutes, until golden and cooked through. Cool completely.
05 -
Remove chilled cheesecake from pan. Place the cooled cake layer on top of cheesecake.
06 -
Heat heavy cream in a small saucepan until just simmering. Pour over chocolate chips in a bowl, let stand 2 minutes, then stir until smooth and glossy.
07 -
Pour chocolate ganache evenly over the sponge cake layer, allowing it to drip down the sides. Refrigerate for 30 minutes to set.
08 -
Slice using a sharp knife dipped in hot water and wiped dry for clean cuts. Serve chilled or allow to slightly soften at room temperature.