01 -
In a large pot over high heat, boil 720 ml apple cider with mulling spices until reduced to approximately 80 ml thick syrup. Allow to cool completely.
02 -
Preheat oven to 175°C (350°F).
03 -
Pulse biscuits in a food processor until finely ground. Add melted butter, salt, and powdered sugar. Pulse until mixture resembles wet crumbs.
04 -
Press crumb mixture into the base of a greased and parchment-lined 20 cm (8") round springform pan wrapped in foil, forming a compact layer. Bake for 10 minutes, then cool completely and refrigerate.
05 -
Lower oven temperature to 160°C (325°F).
06 -
In a stand mixer with paddle attachment, beat softened cream cheese and brown sugar on medium until completely smooth, scraping bowl as needed.
07 -
Add sour cream, vanilla extract, salt, ground cinnamon, and 80 ml cooled apple cider reduction. Mix until creamy and fully combined.
08 -
Gently mix in eggs and flour until just incorporated, avoiding overmixing.
09 -
Place prepared springform pan inside a deep roasting pan. Pour cheesecake batter onto chilled crust. Fill roasting pan with hot water until it reaches halfway up the sides of the springform pan.
10 -
Carefully transfer to oven and bake for 90 minutes or until edges are set and center is slightly wobbly when gently shaken.
11 -
Turn off oven. Prop oven door open with a wooden spoon and let cheesecake cool inside for 30 minutes; then close door and let stand for another 15 minutes.
12 -
Remove pan from oven and water bath. Cool completely at room temperature, then refrigerate for at least 8 hours before unmolding and serving.