01 -
Preheat the oven to 175°C. Line a 20x20 cm metal baking tin with parchment paper, ensuring an overhang for easy removal.
02 -
In a large bowl, blend graham cracker crumbs, pretzel crumbs, brown sugar, and melted butter until evenly moistened. Press the mixture firmly into the base of the tin using the bottom of a measuring cup. Bake for 10 minutes until fragrant, then cool on a wire rack.
03 -
Reduce the oven to 165°C.
04 -
In a small saucepan over medium heat, melt chopped chocolate and stout together, stirring constantly until smooth. Remove from heat and allow to cool to room temperature.
05 -
In a large mixing bowl with paddle attachment, beat cream cheese, granulated sugar, and brown sugar on medium-high until very smooth and creamy, about 2 minutes, scraping down the bowl as needed.
06 -
Add sour cream and sifted cocoa powder to the cream cheese mixture, beating until just combined.
07 -
Add cooled chocolate-stout mixture and combine. Add eggs one at a time, mixing gently after each addition. Scrape down the sides of the bowl. Incorporate vanilla extract, espresso powder, and sea salt until just blended. Do not over-mix.
08 -
Pour the batter onto the cooled crust and smooth the surface. Tap the pan firmly on the work surface a few times to eliminate air bubbles.
09 -
Bake at 165°C for 35 minutes, until edges are set and the centre slightly wobbles. Turn off the oven, crack the door, and let the cheesecake rest for 10 minutes before transferring to a wire rack.
10 -
Once at room temperature, cover and refrigerate the cheesecake for at least 6 hours, preferably overnight.
11 -
In a mixing bowl with whisk attachment, whip cold cream on medium-high speed until soft peaks form, about 4 minutes. Add sifted powdered sugar, combining on low. Scrape bowl, add stout, and whip until medium peaks form, 1-2 minutes. Transfer whipped cream to a piping bag with a star tip.
12 -
Using parchment overhang, lift cheesecake from tin. Transfer to a cutting board and slice into bars with a sharp knife, wiping blade between cuts for clean edges. Pipe whipped cream rosettes onto each bar and dust with cocoa powder if desired. Serve immediately.