01 - Line the bottom of a 9-inch springform pan with parchment paper to ensure easy release.
02 - In a mixing bowl, combine crushed crackers with melted butter until coated. Press the mixture firmly into the pan base to form an even layer. Refrigerate to set while filling is prepared.
03 - Place chopped white chocolate in a heatproof bowl set over a pan of gently simmering water, stirring until melted. Remove from heat and allow to cool slightly.
04 - In a large bowl, beat cream cheese with sugar until smooth and creamy. Add vanilla extract and lemon juice; blend until incorporated.
05 - In a separate bowl, whip heavy cream using a hand mixer or stand mixer until medium-stiff peaks form.
06 - Gently fold the cooled melted white chocolate into the cream cheese mixture. Carefully incorporate the whipped cream, folding just until combined to maintain the volume.
07 - Pour the cheese filling over the chilled crust, smoothing the top with a spatula. Cover and refrigerate for at least 6 hours, or overnight, until completely set.
08 - Combine cranberries, sugar, and water in a saucepan over medium heat. Cook, stirring often, until cranberries burst and the sauce thickens, about 8 minutes. Stir in the cornstarch slurry and continue cooking for 1 to 2 minutes until glossy and slightly thickened. Remove from heat and cool completely.
09 - Once the cheesecake is fully set and the topping cooled, spread the cranberry mixture over the surface just before serving.