01 - Line the base of a 9-inch springform pan with parchment paper to prevent sticking.
02 - Combine crushed cookies and melted butter in a mixing bowl until evenly moistened. Firmly press the mixture into the base of the prepared pan to form an even layer. Chill in the refrigerator while assembling the filling.
03 - Place white chocolate in a heatproof bowl over barely simmering water, stirring gently until smooth. Remove from heat and let cool slightly.
04 - In a large mixing bowl, beat cream cheese and granulated sugar until completely smooth. Blend in vanilla extract and lemon juice until fully incorporated.
05 - In a separate bowl, whip heavy cream using a mixer until medium-stiff peaks form.
06 - Fold the cooled melted white chocolate into the cream cheese mixture. Gently incorporate the whipped cream until the mixture is smooth and homogenous.
07 - Pour the cheesecake filling over the chilled crust, smoothing the top with a spatula. Cover and refrigerate for at least 6 hours, or overnight for best firmness.
08 - In a saucepan, combine cranberries, sugar, and water. Heat over medium, stirring occasionally, until cranberries burst and the mixture thickens, approximately 8 minutes. Stir in the cornstarch slurry and cook an additional 1 to 2 minutes until glossy and slightly thickened. Allow to cool completely.
09 - Spoon the cooled cranberry topping over the set cheesecake just before serving. Slice and serve chilled.