01 -
Wrap a 23-cm springform pan in several layers of foil to prevent water leakage. Grease the base and sides thoroughly. Preheat oven to 175°C.
02 -
Combine finely crushed chocolate sandwich cookies with melted butter in a large bowl. Stir until the mixture resembles wet sand. Press firmly into the base and slightly up the sides of the prepared pan.
03 -
Bake crust for 10 minutes at 175°C. Remove and allow to cool on a rack. Reduce oven temperature to 165°C.
04 -
Gently heat water in a saucepan until just simmering. Place a heatproof bowl over the water, ensuring it does not touch the liquid. Add chopped chocolate and espresso powder. Stir occasionally until melted and smooth. Keep warm over the water.
05 -
In a food processor, blend softened cream cheese until completely smooth, about 2 minutes. Scrape the sides. Add brown sugar, granulated sugar, and cocoa powder, blending until fully incorporated. Add eggs and egg yolks one at a time, pulsing after each addition.
06 -
With processor running, slowly pour in room temperature heavy cream and vanilla extract. Blend briefly, around 20 seconds, until just mixed.
07 -
Fold the melted chocolate mixture into the cream cheese batter, stirring until the mixture is completely homogenous and glossy.
08 -
Pour half the batter over the cooled crust. Evenly distribute raspberries across the surface. Cover with remaining filling, ensuring berries are fully enclosed.
09 -
Place the foil-wrapped pan in a large roasting tin. Carefully pour very hot water into the roasting pan to a depth of approximately 2.5 cm. Bake at 165°C for about 70 minutes, until edges are set and centre jiggles slightly.
10 -
Remove from water bath and partially peel foil to allow steam to escape. Run a thin knife around the edge to loosen. Cool completely in the pan at room temperature.
11 -
Chill the cheesecake in the refrigerator for at least 6 hours before removing from the pan or slicing.
12 -
Place chopped chocolate in a bowl. Heat cream in a saucepan until just below boiling, then pour over chocolate. Let stand 1 minute, then whisk until smooth. Add soft butter and stir until melted. Allow to sit at room temperature until slightly thickened.
13 -
Spread ganache in an even layer over the chilled cheesecake using a spatula. Allow to set at room temperature for about 1 hour.
14 -
Use a sharp, thin knife, cleaning between cuts, to portion. Top each slice with chocolate sauce, fresh raspberries, and a dusting of cocoa powder if desired. Store covered in the refrigerator for up to 5 days.