01 - Line the base of a 9-inch springform pan with parchment paper.
02 - In a mixing bowl, blend crushed cookies with melted butter until evenly coated. Firmly press mixture into the bottom of the prepared pan to form an even layer. Refrigerate while making the filling.
03 - Gently melt white chocolate in a heatproof bowl set over simmering water, stirring until smooth. Remove from heat and allow to cool slightly.
04 - In a large bowl, beat cream cheese and granulated sugar using a hand or stand mixer until smooth. Blend in vanilla extract and lemon juice until fully incorporated.
05 - In a separate bowl, whip heavy cream to medium-stiff peaks.
06 - Fold the melted white chocolate into the cream cheese mixture. Gently incorporate whipped cream until just combined, taking care not to deflate the mixture.
07 - Spread the filling over the chilled crust, smoothing the top with a spatula. Cover and refrigerate for at least 6 hours, or overnight for best texture.
08 - For the topping, combine cranberries, granulated sugar, and water in a small saucepan. Cook over medium heat, stirring, until the berries burst and the mixture thickens, about 8 minutes. Stir in dissolved cornstarch and simmer an additional 1–2 minutes until glossy and thickened. Allow to cool completely.
09 - Just before serving, spread the cooled cranberry topping over the cheesecake. Unmold and slice as desired.