01 - Line the base of a 9-inch springform pan with parchment paper to prevent sticking.
02 - Combine crushed graham crackers and melted butter in a mixing bowl. Press the mixture firmly and evenly into the base of the prepared pan to form a solid crust. Refrigerate the crust while assembling the filling.
03 - Gently melt white chocolate in a heatproof bowl set over simmering water (double boiler method). Remove from heat and allow to cool slightly.
04 - In a separate large bowl, blend cream cheese and sugar using a hand mixer until smooth and creamy. Incorporate vanilla extract and lemon juice, mixing well.
05 - Whip heavy cream in a clean bowl to medium-stiff peaks using a hand mixer or stand mixer.
06 - Fold the melted white chocolate into the cream cheese mixture until just blended. Gently incorporate the whipped cream in two additions until the mixture is uniform and airy.
07 - Pour the filling evenly over the chilled crust and smooth the surface with a spatula. Cover with plastic wrap and refrigerate for a minimum of 6 hours or overnight to fully set.
08 - In a saucepan, combine cranberries, sugar, and water over medium heat. Cook until cranberries burst and the sauce thickens, about 8 minutes. Stir in the cornstarch slurry and continue to cook for 1–2 minutes until glossy and thickened. Let the topping cool completely.
09 - Spread the cooled cranberry topping evenly over the set cheesecake just before serving. Release the cheesecake from the springform pan and transfer to a serving platter.