01 - Line the base of a 9-inch springform pan with parchment paper.
02 - Combine the graham cracker crumbs and melted butter in a bowl until fully moistened. Press firmly into the bottom of the prepared pan to create a compact, even crust. Refrigerate while preparing the filling.
03 - Gently melt the chopped white chocolate in a heatproof bowl set over simmering water, stirring until smooth. Allow to cool slightly before use.
04 - In a large mixing bowl, beat cream cheese and granulated sugar together until smooth and creamy. Mix in the vanilla extract and lemon juice until fully incorporated.
05 - In a separate bowl, whip heavy cream using a hand mixer or stand mixer until medium-stiff peaks form.
06 - Fold the cooled melted white chocolate into the cream cheese mixture until blended. Gently fold in the whipped cream, taking care not to deflate the mixture.
07 - Pour the prepared filling over the chilled crust, smoothing the top for an even layer. Cover the pan and refrigerate for a minimum of 6 hours, or overnight for optimal set.
08 - In a saucepan, combine cranberries, granulated sugar, and water. Cook over medium heat, stirring occasionally, until the cranberries burst and the mixture thickens—about 8 minutes. Add the cornstarch slurry and cook for 1–2 minutes more until glossy and slightly thickened. Allow topping to cool completely.
09 - Once the cheesecake has set, spoon the cooled cranberry topping evenly over the surface just before serving.