01 - Line the base of a 9-inch springform pan with parchment paper.
02 - Mix crushed biscuits with melted butter in a bowl until evenly combined. Firmly press the mixture into the bottom of the prepared pan to create an even layer. Refrigerate while preparing the filling.
03 - Melt chopped white chocolate gently in a heatproof bowl set over simmering water, stirring occasionally. Allow to cool slightly before using.
04 - Beat cream cheese and granulated sugar together in a large bowl until smooth. Add vanilla extract and lemon juice, mixing thoroughly.
05 - In a separate bowl, whip heavy cream to medium-stiff peaks.
06 - Fold melted white chocolate into the cream cheese mixture. Gently fold in the whipped cream until just combined, ensuring a light, smooth consistency.
07 - Pour filling over the chilled crust in the springform pan and smooth the top. Cover and refrigerate for at least 6 hours, or overnight for optimal set.
08 - For the topping, combine cranberries, granulated sugar, and water in a saucepan. Cook over medium heat, stirring, until cranberries burst and mixture thickens, about 8 minutes. Stir in cornstarch slurry and cook for 1–2 minutes more until glossy and slightly thickened. Allow to cool completely.
09 - Spread cranberry topping evenly over the set cheesecake just before serving. Slice and serve chilled.