01 - Line the base of a 9-inch springform pan with parchment paper to ensure easy release of the dessert.
02 - Combine crushed crackers or biscuits with melted butter in a mixing bowl until the mixture resembles wet sand. Press firmly into the bottom of the pan to create an even layer, then chill in the refrigerator.
03 - Gently melt white chocolate in a heatproof bowl set over a pot of simmering water, stirring frequently. Allow to cool slightly.
04 - In a large bowl, beat the cream cheese with granulated sugar until perfectly smooth. Incorporate vanilla extract and lemon juice, mixing until well blended.
05 - In a separate bowl, whip heavy cream using a mixer until medium-stiff peaks form. Do not overwhip.
06 - Fold the cooled, melted white chocolate gently into the cream cheese mixture. Carefully fold in the whipped cream until just combined and smooth.
07 - Pour the prepared filling over the chilled crust. Smooth the top with a spatula, cover, and refrigerate for at least 6 hours or overnight to set.
08 - Combine cranberries, sugar, and water in a saucepan. Cook over medium heat, stirring occasionally, until cranberries burst and mixture thickens, about 8 minutes. Stir in cornstarch slurry and simmer for 1 to 2 minutes until thickened and glossy. Allow to cool completely.
09 - Spread the cooled cranberry topping evenly over the set cheesecake just before serving.